Radical is the first structure to emerge from the germinating seed of a eudicot such as the garden bean.
Typically, the radicle is the first part of the embryo to emerge from the seed coat. Depending on the species, different structures emerge. Many (but not all) dicots are epigeal, meaning that the hypocotyl extends above ground, carrying the cotyledons. When eudicot seeds germinate, the radicle emerges from the seed coat while the seed is still buried in the soil. The hypocotyl of epigeous eudicots (such as beans) is shaped like a hook, with the plumule pointing downwards.
The seed is made up of three parts: the embryo, the endosperm (sometimes perisperm), and the seed coat. Endosperm and embryo are both the result of double fertilisation, whereas the seed coat develops from maternal, ovular tissues.
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The first structure to emerge from the germinating seed of a eudicot such as the garden bean is the radicle.
The radicle is the embryonic root of the seed and is the first part of the seedling that emerges from the seed. It is a small, thin and white in color. The radicle is the first structure to emerge from the seed, followed by the hypocotyl and the cotyledons.
The radicle is the first living structure of a seedling and is responsible for the growth of the root system of the plant. As the seed germinates, the radicle begins to grow downwards and is the first part of the seedling to take in water and nutrients.
It also helps to anchor the plant and is the most important part of the seedling. The radicle is the first structure to emerge from the seed and is the foundation for the growth of the entire plant.
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A student wants to develop an explanation of the role cellular respiration and photosynthesis play in the cycling of matter. Answering which of the following questions would MOST help the student develop an explanation?
What Are the 5 matching types of Minutiae?
Answer:
Minutiae are unique characteristics or features that can be used to identify an individual fingerprint. There are several types of minutiae, but the five most commonly used for fingerprint identification are:
Ridge ending: the point at which a ridge terminates
Bifurcation: the point at which a ridge splits into two separate ridges
Short ridge: a ridge that is shorter than the average ridge length in the fingerprint
Dot: a small, circular feature in the fingerprint
Island: a small, isolated area of ridges within a larger area of the fingerprint
Answer:
Explanation:
The five types of minutiae commonly used in fingerprint analysis are:
1. Ridge endings: where a ridge terminates
2. Bifurcations: where a ridge splits into two branches
3. Short ridges: ridges that are shorter in length than the surrounding ridges
4. Ridge dots: small, circular ridges that are typically found at the intersections of two ridges
5. Ridge crossings: where two ridges intersect each other, forming an X shape. :)
the punnett square on p. 70 of your lab manual shows the genotypes of two parents for trait r. use this punnett square to answer the questions in this exercise. trait r is the mendelian trait in humans for tongue rolling. the allele for the ability to roll the tongue (r) is dominant over the allele for the inability to roll the tongue (r). what is the mother's genotype? group of answer choices
The genotypes of two parents for trait r is the mendelian trait in humans for tongue rolling. the allele for the ability to roll the tongue (r) is dominant over the allele for the inability to roll the tongue (r). The mother's genotype The mother is heterozygous (Rr) for the tongue-rolling trait.
There are two main types of genotypes that is homozygous and heterozygous. If an organism is homozygous for a gene, referred that they inherit two of the same versions of the gene. If an organism has a heterozygous genotype, referred that they inherit two different versions of a gene.
Genotype referred to the genetic makeup of an organism which described about an organism's complete set of genes. It is used to refer to the variant forms of a genes that are carried by an organism. The ability to roll the tongue is dominant over the allele for the inability to roll the tongue.
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discuss what are the similarities and differences in reproduction in sea turtles, sea snakes, and marine iguana?
Reproduction in sea turtles, sea snakes, and marine iguanas all have some similarities, but also have some distinct differences.
Sea turtles, sea snakes, and marine iguanas all lay eggs. The female will lay eggs on a beach, or in a nest that she has dug out.
After the eggs are laid, the nest is then covered up and the female will leave.
The eggs then incubate on their own until they hatch.
The biggest difference in their reproduction is the way in which their eggs are incubated.
Sea turtles bury their eggs in the sand and rely on the warmth of the sun to incubate them.
Sea snakes lay their eggs on land and rely on the heat of the ground and the sun to incubate them. Marine iguanas rely on the constant warmth of the lava rocks on the beach to incubate their eggs.
The mating process of these three animals also differs.
Sea turtles mate in the ocean and the male turtles will compete for a female’s attention. Sea snakes also mate in the ocean and the males will fight for the female’s attention.
Marine iguanas, on the other hand, mate on land and the males will fight for the female’s attention.
Overall, sea turtles, sea snakes, and marine iguanas have some similarities in their reproduction, but also have some distinct differences.
From the way in which their eggs are incubated, to the amount of eggs they lay, to the way that they mate, these animals have unique and fascinating reproductive cycles.
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during interphase, dna with actively transcribing genes is typically classified as ? why is his important?
Option b is Correct. DNA having genes that are actively transcribed during interphase is often referred to as euchromatin.
The chromatin form of it prevents gene expression. The loosely coiled DNA seen in cells during interphase is known as chromatin. Proteins called transcription factors are involved in the process of turning DNA into RNA, or transcribed DNA. A large variety of proteins—aside from RNA polymerase—called transcription factors start and control how genes are transcribed.
Typically, DNA is bound by a transcription factor at a specific target sequence. To activate transcription, general transcription factors bind to certain DNA locations. RNA polymerase is positioned by these auxiliary proteins, which group together on the promoter, separate the double helix, and then launch the RNA polymerase to start transcription.
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Correct Question:
During interphase, DNA with actively transcribing genes is typically classified as _________________? Why is his important?
A. heterochromatin
B. euchromatin
can you sequence the following levels of biological organization from smallest to largest?
Organelles, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystems, and biosphere are the biological stages of the structure of living things, listed from the simplest to the most complex.
The cellular level is the earliest and most fundamental level of organization. The fundamental building block of life and indeed the smallest unit incapable of multiplication is the cell. Although the form and function of cells vary widely depending on the kind of species.
DNA, genes, and chromosomes are listed in size order, smallest to largest. The four various types with double DNA molecules that make up a chromosome are determined by the bases they are connected to. Adenine (A), thymine (T), guanine (G), and cytosine (C) are the four different kinds of DNA (C).
Mass spectrometry and Pcr degradation utilizing a protein sequencer are the two primary this to of protein sequencing (sequencer). The most used techniques now for protein sequence and recognition are mass spectrometry techniques.
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Levels of biological organization starting from smallest to largest organelle includes cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
In general , organism level is considered as the highest level of organization. An organism is known as living being that includes cellular structure and can independently perform all physiologic process needed for life. Smallest level of organization is known as the cell. Next in row is tissue because it's more complex and are made from the group of cells, a group of tissue forms an organ, and a group of organs together known as organ system.
Similarly ,Ecosystems is also classified for the better understanding as They are organized from smallest to largest that includes organism, population, community, ecosystem.
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Which of the following uses of commodity crops represents an indirect way the crop enters the human food
system?
O corn used as animal fodder in the dairy industry
Orice sold primarily as human food
O soybeans pressed to extract cooking oil
O cotton providing fiber for fabric manufacture
'Corn used as animal fodder in the dairy industry' represents an indirect way the crop enters the human food system.
What do you mean by crop?
Crop in biology refers to a plant organ or appendage that is used to store energy. It can also refer to the edible portion of a plant, such as grains, fruits, or vegetables. The crop is part of the digestive system of animals, such as birds and mammals, where food is stored before it is passed to the stomach for further digestion. In plants, the crop is often a modified leaf or stem that is used to store energy. Examples of plants with crops include grasses and cereal grains.
Corn used as animal fodder in the dairy industry does not directly enter the human food system. Instead, the corn is fed to animals such as cows, which then produce milk, meat, and other dairy products that humans consume. Thus, it is an indirect way that the crop enters the human food system since it is not consumed directly by humans.
Hence, option A is correct.
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A(n) __________ is a number of people who may never have met one another but share a similar characteristic (such as education level, age, race, or gender)
A demographic is a number of people who may never have met one another but share a similar characteristic (such as education level, age, race, or gender).
Demographics refers to the statistical characteristics of a population, for example, age, orientation, pay, schooling level, occupation, race, and geographic area.
These characteristics can be utilized to fragment a population into explicit gatherings, which are known as segment sections or portions.
Advertisers, specialists, and investigators utilize segment data to more readily comprehend an objective market and design items, administrations, and promoting to explicit gatherings.
Demographics can likewise be utilized to depict the characteristics of a particular geographic area, like an area, city, or country.
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A demographic is a number of people who may never have met one another but share a similar characteristic (such as education level, age, race, or gender).
Demographics are a valuable tool used to gain insight into the characteristics of a population. Demographic data can be used by businesses to identify potential customers, by governments to address social issues, and by researchers to uncover trends and patterns in behavior. This data can also be used to compare differences between two populations and measure the success of an organization's efforts to reach a certain population.
For example, a company may measure the effectiveness of its advertising campaigns by knowing the demographics of its target audience. With this knowledge, the company can then adjust its strategy accordingly.
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in a Pp x Pp cross what is the probability that offspring will inherit two p alleles?
Answer:
Explanation:
each offspring of a Pp× Pp cross has a 50% chance of receiving either allele from either parent. So, the probability of inheriting two p alleles is 1/2 1/2. This equals 1/4.
which statement is true about gene and dna?
proteins code for the genes that determines an organisms physical traits
An organisms inherited physical traits code for its genes
Genes code for proteins that determine an organisms physical traits
Physical traits code for the proteins that determine an organisms genes
Answer: With respect to genetic information, it is true that a gene is a section of DNA and is found on a chromosome in the cell's nucleus.
Explanation:
Evaluate: The Great Grand Canyon CER Rubric
Has the Grand Canyon changed over long periods of geologic time?
Use the following terms in your evidence and reasoning for your
claim.
fossil
superposition
erosion
relative dating
radioactive dating
The canyon's oldest exposed rocks are 1,840 million years old. The canyon, on the other hand, is geologically new, having been carved during the previous 6 million years.
How have the Grand Canyon's rocks altered over the last million years?Under high heat and pressure, these rocks turned into the dark-colored "basement" rocks observed towards the canyon's bottom today, including 1.84 billion-year-old Elves Chasm gneiss, the canyon's oldest known.
Finally, the Colorado River began to cut its way downhill just 5-6 million years ago. The canyon widened as a result of further erosion by tributary streams. These natural processes are still at work, gradually deepening and broadening the Grand Canyon.
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Type of selection seen in dogs and other domestic animals is called?
The type of selection seen in dogs and other domestic animals is called artificial selection.
Artificial selection is a kind of selection wherein people effectively breed animals for specific wanted traits.
Dogs are a perfect representation of artificial selection. For more than millennia, people have specifically reproduced dogs for explicit attributes like size, shape, and conduct.
Domestic animals like dairy cattle, sheep, pigs, and chickens have additionally been dependent upon artificial selection. For instance, dairy cows have been specifically reared for high milk creation.
Artificial selection has considered the improvement of a wide assortment of domestic animals that are appropriate for various purposes, however, it likewise has a drawback, as it can prompt hereditary issues and inbreeding.
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The type of selection seen in dogs and other domestic animals is called artificial selection.
This is a process of deliberately selecting animals or plants for particular traits and then breeding them in order to produce offspring with the desired characteristics.
Artificial selection is a process of creating a population of organisms with desired traits by selectively breeding those that have the desired characteristics. It is a form of selective breeding where humans breed animals and plants for particular traits, such as size, shape, coat color, behavior, and other characteristics.
This process is usually done to develop new varieties of plants and animals that are more suitable for human use.
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Predict what the following blood type test results will look like for a person who has Type B-blood. Drag the correct blood results onto the test card wells. Blood resu may be used more than once.
The results of a blood type test for a person with Type B- blood would show that they have the B antigen on their red blood cells and the negative (Rh-) antigen on their red blood cells.
This can be confirmed by using a test that checks for the presence of B and Rh antigens in the blood sample. According a person with Type B- blood would not have the A antigen present on their red blood cells. It is important to note that this test only determines a person's blood type and does not diagnose any specific medical conditions. Other tests, such as an electrophoresis blood test, may be needed to diagnose certain medical conditions like multiple myeloma
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The consequences of a blood classification test for an individual with Type B blood would show that they have the B antigen on their red platelets and the negative (Rh-) antigen on their red platelets.
This can be affirmed by involving a test that checks for the presence of B and Rh antigens in the blood test. Concurring an individual with Type B blood wouldn't have the antigen present on their red platelets. It is essential to take note that this test just decides an individual's blood classification and determinations no particular ailments. Different tests, for example, an electrophoresis blood test, might be expected to analyze specific ailments like numerous myeloma.
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Can anyone help 50 points for biology
Using the image below identify the following structures please
type of selection seen in dogs and other domestic animals
Answer:
Artificial selection
Explanation:
Humans have been selectively breeding plants and animals since time immemorial .This breeding lead to the creation of breeds thatdiffer from other breeds but are still under the same group . For eg . Dogs ( from wolfs )Cabbage , Cauliflower, brocoli evolved from a variety of wild mustard.It is often argued that if man could create new breeds within hundreds of years then nature could have done this same over millions of years .Hope this helps!
Which of the following indicates pests that are controlled by nematicides?
O nematodes
O virae
O bacteria
O slugs
Answer:
Nematodes
Explanation:
Nematicides are a type of pesticide used to control pests that are nematodes, which are tiny, worm-like organisms that can damage plants by feeding on their roots. So the correct answer is nematodes.
Virae, bacteria, and slugs are not controlled by nematicides. Viruses are infectious agents that can cause diseases in plants. Bacteria are microorganisms that can also cause diseases in plants or animals. Slugs are mollusks that can damage plants by feeding on their leaves and stems.
more young americans are dying, but not from vaccines.T/F
It's true that more American teenagers are passing away, but not because of immunizations.
The CDC advises against administering this vaccine to anyone who has a severe allergy (such as anaphylaxis) to any of the chemicals in the mRNA vaccine. People with sensitivities to specific foods, insects, latex, and other common allergens can receive the COVID-19 immunization without risk, according to the CDC. But after 30 years of work, there is still no AIDS vaccine.
There is no single influenza vaccine. There are no vaccines that offer long-lasting defense against tuberculosis or malaria. None for liver flukes, elephantiasis, hookworm, or Chagas disease. The main causes of death among teenagers are injuries (especially those from car accidents and drowning), violence, self-harm, infectious diseases such respiratory infections, and maternal disorders (complications from pregnancy).
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HURRYY!!!
GEORGE AND KYLE WERE TAKING A QUIZ. THIS WAS ITEM 4: "Scientists just discovered a new kind of organism and gave it the common name blue spinner. Make one statement that must be true about the structure of a blue spinner. "
George wrote, "A blue spinner is made of at least one cell. "
Kyle wrote, "A blue spinner has tissues that perform specific functions. "
Which of the responses is correct? Explain the error made in the incorrect response
George is correct while Kyle is not.
An organism is a type of living being that can be either unicellular or multicellular. It exists as a single entity and works to maintain its existence. George is accurate in his assertion.
George claims that at least one cell makes up a blue spinner. An organism must consist of either one cell or many cells in order to be considered alive.
Given that the newly found species might either have several cells or only one.
Kyle's assertion is false since it is known if the organism is a single-celled structure or a multi-celled structure and thus no inference can be made about the tissues.
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George is correct while Kyle is not. An organism is a type of living being that can be either unicellular or multicellular. It exists as a single entity and works to maintain its existence.
George is accurate in his assertion. George claims that at least one cell makes up a blue spinner. An organism must consist of either one cell or many cells in order to be considered alive. George is correct while Kyle is not. An organism is a type of living being that can be either unicellular or multicellular. It exists as a single entity and works to maintain its existence. Given that the newly found species might either have several cells or only one. Kyle's assertion is false since it is known if the organism is a single-celled structure or a multi-celled structure and thus no inference can be made about the tissues.
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Why would immune cells be an important part of tissue repair? Why might it be particularly harmful to have scar tissue in the heart? A strange experiment can help to show the differences between scar tissue and normal skin tissue. If you were to throw flour on the man in the photo, the flour would stick to the man's chest everywhere but on his scar. Give a possible explanation for this.
Immune cells, such as white blood cells, play an important role in tissue repair by identifying and removing damaged or infected cells, promoting the growth and differentiation of new cells, and releasing molecules known as growth factors that stimulate the production of new blood vessels.
2. Scar tissue in the heart can be particularly harmful because it can interfere with the normal functioning of the heart. Scar tissue forms in response to injury or damage to the heart muscle, and it can disrupt the normal electrical and mechanical function of the heart. This can lead to arrhythmias, or irregular heartbeats, and can also make the heart muscle less flexible and less able to pump blood effectively.
3. The difference in the way flour sticks to the man's chest in the photo may be due to the fact that scar tissue is composed of different types of collagen than normal skin tissue. Collagen is a protein that gives skin its structure and strength. In scar tissue, the collagen fibers are arranged in a different pattern than in normal skin, which can affect the way that other substances, such as flour, interact with the tissue.
What are the immune cells?Immune cells, also known as white blood cells, are a crucial part of the body's immune system. They play a vital role in defending the body against foreign invaders such as bacteria, viruses, and other pathogens.
They also play an important role in tissue repair by identifying and removing damaged or infected cells, promoting the growth and differentiation of new cells, and releasing molecules known as growth factors that stimulate the production of new blood vessels.
There are several different types of immune cells, including neutrophils, lymphocytes, monocytes, and eosinophils. Each type of immune cell has a specific function and plays a unique role in the immune response. For example, neutrophils are the most abundant type of white blood cell and are responsible for engulfing and destroying pathogens.
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The main source of downward convection flow in the mantle is called _____ridge-pullslab-pullslab-pushridge-push
Slab - pull is the main source of downward convection flow in the mantle .
The force that a cold, dense oceanic plate exerts as it descends into the mantle as a result of its own weight is known as a slab-pull. Subduction is the term for this action.
The oceanic plate has a higher density than the hotter mantle underneath it, and because of this, the plate sinks into the mantle. A geophysical process known as slab pull occurs when a subducting tectonic plate cools and subsequently becomes denser, pulling the rest of the plate downward. A cold, solid oceanic plate that is being pulled into the mantle by its own weight is known as a slab. According to the hypothesis, the oceanic plate sinks into the mantle because it has a higher density than the hotter mantle underneath it.
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The primary cause of the mantle's downward convection flow is slab-pull.
A slab-pull is the pressure that an oceanic plate experiences as it sinks into the mantle as a result of its own weight. This action is known as subduction. The oceanic plate sinks into the mantle because it has a higher density than the hotter mantle beneath it. When a subducting tectonic plate cools and consequently gets denser, dragging the rest of the plate downward, this geophysical phenomenon is known as slab pull.
A slab is a cold, dense oceanic plate that is being dragged into the mantle by its own weight. The theory holds that the oceanic plate descends into the mantle because it has a larger density than the mantle underneath it, which is hotter.
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scientists are continually discovering and documenting new species, although the rate of discovery of new species varies by group. in general, how would the discovery and documentation of species new to science change your estimates of the numbers of species that are potentially threatened? why is the discovery of new species sometimes a critical conservation issue?
Scientists are continually discovering and documenting new species, although the rate of discovery of new species varies by group.The numbers of species that are potentially threatened because it is endagered sometimes a critical conservation issue.
Vulnerable unit referred to species that considered to be facing a high risk of extinction in the wild. Endangered referred to new species that facing an extremely high risk of extinction in the wild. It is an organism that helps define an entire ecosystem.
Species critically endangered because they are loss of genetic variation and habitat. It is so important for us to protect our new species becuase it privodes healthy ecosystem which depend on plant and animal as well as for ecological cycle.
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epithelia are strong membranes that function to bind the body together.
True ,epithelia are strong membranes that function to bind the body together.
Epithelia are formed by Intercellular junctions that works importantly in sealing the space present in between the cells by filling all the gaps also known as gap junctions.
Epithelia are also considered as a the type of respiratory epithelium that is found within the linings of the trachea and other areas of respiratory tract, that helps in filtering and humidification of incoming air. They help our body to perform wide array of functions that include protection, secretion, absorption, filtration, diffusion, and excretion.
Complete question is
Epithelia are strong membranes that function to bind the body together. True or False
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False. Epithelia are not strong membranes that function to bind the body together.
While epithelia do serve a variety of functions in the body, including protecting underlying tissues, regulating the exchange of materials across membranes, and sensing changes in the external environment, they are not considered to be strong membranes that function to bind the body together. Other structures, such as connective tissues, are responsible for providing the physical support and strength needed to bind the body together.
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Complete Question:
Epithelia are strong membranes that function to bind the body together. true/false.
Which of the following is a carefully worded statement of the exact procedures used in research study?
O dependent variable
O control group
O random sample
O independent variable
O operational definition
Answer:
operation definition
Explanation:
An operational definition is a carefully worded statement of the exact procedures used in a research study. It describes how a variable or concept is operationalized and measured in the study. An operational definition provides clear and specific instructions for how the variable or concept will be operationalized and measured so that other researchers can replicate the study. The other options you provided are important elements of a research study, but they do not provide specific information on the procedures used to operationalize and measure a variable or concept.
when applying the process of science, which of these is tested?
a) a question
b) a result
c) an observation
d) a prediction
e) a hypothesis
when applying the process of science, a hypothesis is tested.
A hypothesis is a claim or explanation about a scientific process that is taken to be true. The foundation of any research is the tested assumption, which is done next.
A hypothesis should be founded on known ideas and a body of information; it should not just be an educated guess. Additionally, it must be testable so that you can use scientific research techniques to either confirm or disprove it (such as experiments, observations, and statistical analysis of data).
The scientific method's steps will be discussed in greater detail later, but one of its most crucial components is the testing of hypotheses. A testable hypothesis is a theory put out to explain an occurrence.
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Once all the members of a____ have this favorable trait, then it is referred to as an ____.
CLOZE-ing in on Science
Once all the members of a population have this favorable trait, then it is referred to as an allele.
What is an allele?
This refers to a variation of the same sequence of nucleotides that are found at the same place within the DNA molecule."The chromosomal or genomic location of a gene or any other genetic element is called a locus while the alternative DNA sequences at a locus are known as the alleles.
Genes are responsible for the traits of an organism. They act as instructions for protein synthesis. One pair of each gene is always present on homologous chromosomes, one from each parent. These Genes are known as alleles that play an important role in shaping the features of the individuals.
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if you were to divide a human head into equal parts using a frontal section and a transverse section, how and where would it be divided?
We were to divide a human head into equal parts using a frontal section and a transverse section into four parts; It would be divided verticаlly into аnterior аnd posterior portions, аnd horizontаlly аt аpproximаtely the top of the eаrs.
There аre three bаsic reference sections used in аnаtomy: the sаgittаl plаne, the coronаl plаne, аnd the trаnsverse plаne.
А coronаl or frontаl section divides the body into dorsаl аnd ventrаl (bаck аnd front, or posterior аnd аnterior) portions. А trаnsverse section, аlso known аs аn аxiаl plаne or cross-section, divides the body into crаniаl аnd cаudаl (heаd аnd tаil) portions. А sаgittаl section divides the body into sinister аnd dexter (left аnd right) portions.If we were to divide a human head into equal parts using a frontal section and a transverse section, it would be divided into 4 parts: verticаlly into аnterior аnd posterior portions, аnd horizontаlly аt аpproximаtely the top of the eаrs.
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The triple helix structure of collagen protein Is possible largely due to a. glycine and its small side chain b. an exact palring of pyrimidlnes and purlnes
c. the covalent disulfide bridges between cystelnes d. the absence of carboxyl groups
The triple helix structure of collagen protein Is possible largely due to (c) covalent disulfide bridges.
A fibrous protein called collagen serves as the structural framework for numerous bodily tissues, such as tendons, ligaments, skin, and bone. Three polypeptide chains, each of which is rich in the amino acid glycine and allows for tight packing of the chains, are aligned to produce the distinctive triple helix structure of collagen.
The presence of covalent disulfide bridges between cysteine residues on the various chains, which aid in holding the chains together, is largely responsible for the stability of the triple helix structure. Collagen is more stable since it does not include carboxyl groups. collagen is major component of extracellular matrix.
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Collagen protein's triple helix structure Is made possible in large part by (c) covalent disulfide bridges.
Collagen is a fibrous protein that serves as the structural framework for many bodily tissues, including tendons, ligaments, skin, and bone. Three polypeptide chains, each of which is rich in the amino acid glycine and allows for tight packing of the chains, are aligned to produce the distinctive triple helix structure of collagen.
The presence of covalent disulfide bridges between cysteine residues on the various chains, which aid in chain stability, is largely responsible for the triple helix structure's stability. Collagen is more stable because it lacks carboxyl groups. Collagen is an important component of the extracellular matrix.
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Earth is approximately 4.6 billion years old. How do scientists determine this?
A by measuring the age of the oldest glaciers
B by using radiometric dating techniques on meteorites
C by measuring the age of the oldest fossils
D by
determining the chemical composition of sea-floor sediments
Answer:
d
Explanation:
For this lab report, you will be discussing the results shown in the data table from the previous page. Some of the questions
you should address in the discusssion include the following:
1. What were the independent variable and dependent variable in this experiment? In this experiment, what is being
altered for each trial and what is being recorded for the results.
2. Explain why counting the number of oxygen bubbles produced is an acceptable method to determine the rate of
photosynthesis. What is the connection between the oxygen bubbles and photosynthesis?
3. Why do white and green light colors cause different rates of photosynthesis?
4. Explain any possible sources of error in the experiment.
Elodea exposure time is a constant that is unaffected by the dependent variable, photosynthetic rate, or distance from the light source.
What was the dependent variable in the Elodea experiment?Elodea exposure time is a constant that is unaffected by the distance from the light source, the rate of photosynthesis, or the dependent variable.
The independent variable is the cause. Your study's other factors are irrelevant to how valuable it is. The dependent variable is the result. The value of the independent variable changes as it changes.
The dependent variable, which measured the rate of photosynthesis, was the number of bubbles that appeared when the light source was on. Photosynthesis will alter based on the amount of light.
Light output is a separate parameter (how close the light is). The number of oxygen bubbles released is the dependent variable (the rate of photosynthesis).
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Explain in your own words what being lactose tolerance means. Be sure you use the following terms in your explanation. enzyme, persistent, glucose, carbohydrate, lactose, monosaccharide, and hydrolysis.
Lactose intolerance is when someone has trouble digesting lactose, a sugar found in milk, and other dairy foods. If people with lactose intolerance eat dairy products, the lactose from these foods passes into their intestines, which can lead to gas, cramps, a bloated feeling, and diarrhea. Some people can have small amounts of dairy without problems. Others have a lot of stomach trouble and void all dairy products. Many foods, drinks, and digestive aids are available to help manage lactose intolerance eat something containing lactose, and an enzyme in the small intestine called lactase breaks it down into simpler sugar forms called glucose and galactose. These simple sugars are then absorbed into the bloodstream and turned into energy body doesn't make enough lactase to break down lactose. Instead, undigested lactose sits in the gut and gets broken down by bacteria, causing gas, bloating stomach cramps, and diarrhea.