Answer:
Xylem is one of the two types of transport tissue in vascular plants, phloem being the other. The basic function of xylem is to transport water from roots to stems and leaves, but it also transports nutrients.
Explanation:
Minerals are naturally occurring inorganic solids that possesses an orderly internal structure and a definite chemical composition
This orderly internal structure or regular pattern is called its
2
hardness
B
cleavage furrow
specife gravity
crystal structure
Answer:
hardness
Explanation:
Answer:
hardness
Explanation:
(k12)
Which of the following is true of active transport?
A In active transport, the cell does not have to do any work as nature moves the materials across the cell membrane.
B The energy used by the cell is in the form of the ADP molecule
C In active transport, the cell must push or pump the molecules from areas of high concentration to areas of low concentration.
D Molecules called pumps function to control active transport.
Answer:
D. Molecules called pumps function to control active transport.
Explanation:
Active transport is one of the two types of transport (the other being passive transport). It is the type of transport in which substances move against their concentration gradient i.e. from a lower concentration to a higher concentration. Hence, due to this, energy input in form of ATP is required by the cell.
However, the process of active transport makes use of certain molecules called PUMPS to control it. The pumps moves ions/molecules against their concentration gradient. An example is the sodium-pottasium pump which moves sodium ions from a region of low conc. to a region of high conc.
In the PBS video about the marathon, the speaker discusses several pieces of information about why humans are well equipped for running. The majority of his support for this position comes from which discipline?
You Answered
Well the PBS kid television is about to teach kids how to behave and be disciplined .
Explanation:
They also have them to learn.
Which of the following is NOT a reason for asexual reproduction in somatic cells? A growth B replacement of dead cells С repair injuries D to make gametes
Answer:
D. Making gametes technically isnt asexual reproduction because the offspring arent exact copies.
Explanation:
Mitosis is what replaces dead/ dying cells and repair injuries
What are the 2 main categories of cells?
A: Eukaryotic cells and Plant cells
B: Animal cells and Plant cells
C: Prokaryotic cells and Eukaryotic cells
D: Prokaryotic cells and Animal cells
Answer:
the answer is C :)))))))))))))
Killing too many predators can cause:
A. producers to make less food
B. strong animals to die faster
C. sick animals to live longer
D. producers to starve
Answer:
I think its d
Explanation:
Sorry if i am wrong!
Answer:
[tex]\huge\boxed{\sf Sick\ animals\ to\ live\ longer}[/tex]
Explanation:
Predators usually prey upon sick animals so that the best among the specie is able to reproduce and produce the most fertile offspring. This maintains the cycle of nature. If too many predators are killed, it will cause sick animals to live longer. As a result, they will reproduce and the offspring will not be healthy enough which in future, can cause many problems.
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807what is glucose formula
Answer:
C₆H₁₂O₆
Explanation:
Glucose is a simple sugar with the molecular formula C₆H₁₂O₆. Glucose is the most abundant monosaccharide, a subcategory of carbohydrates.
Explain what contributes to an ecosystems stability?
Answer:
Factors influencing ecosystem stability are biotic potential and environmental resistance. This could be in the form of positive and negative factors of population growth either abiotic or biotic, species diversity that is highly correlated with stability, as well as climate.
Explanation:
i hope this helps
If a eukaryotic cell has 20 chromosomes and it undergoes meiosis, how many cells will result, and how many chromosomes will they contain?
A. 4 diploid cells, each with 20 chromosomes
B. haploid cells, each with 10 chromosomes
C. haploid cells, each with 10 chromosomes
D. diploid cells, each with 20 chromosomes
Answer: 2 haploid cells, 10 chromosomes each.
Explanation: meiosis produces haploid gametes from the parent cell.
Areas of the Earth near the equator receive large amounts of solar energy. How does this lead to increased rainfall?
A.
The solar energy creates wind, which pushes clouds from the poles to the equator.
B.
The solar energy allows plants to complete photosynthesis reactions.
C.
The solar energy heats the air, which causes water vapor to condense.
D.
The solar energy provides the energy for water to evaporate.
Answer:
D
Explanation:
The heat will make water evaporate at a higher rate thus causing more rain
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14
lo
6
Most of the aerobic respiration of a cell takes place in which structure?
A) chloroplast
Blysosome
C vacuole
D) mitochondrion
What causes plants to curve and grow upward if turned on their side?
Answer:
Gravitropism.
Explanation:
This is when a plant grows upwards against gravity.
It is also trying to grow towards light.
Suzanne drew a diagram to compare the functions of roots and leaves. Which characteristic belongs in the area marked Y?
- anchors plant
- stores food
- absorbs minerals
- produces glucose
Answer: absorbs minerals
Explanation:
Answer:
the dude above is right
Explanation:
How do you create a dichotomous key?PLEASE WRITE IT GOOD BC I HAVE A TEST TOMORROW
Answer:
In the field of biology, classification plays a major role. With new species being discovered every day, it’s important to have techniques in place to identify and classify them. One such tool is the dichotomous key. It helps identify organisms by directing the user to look at the known organisms.
Explanation:
What is a Dichotomous Key
What is a Dichotomous KeyStudents and professionals use the dichotomous key to identify and classify objects (i.e. people, animals, plants, bacteria, etc.) into specific categories based on their characteristics. It’s the most commonly used form of classification or type of identification key used in biology as it simplifies identifying unknown organisms.
What is a Dichotomous KeyStudents and professionals use the dichotomous key to identify and classify objects (i.e. people, animals, plants, bacteria, etc.) into specific categories based on their characteristics. It’s the most commonly used form of classification or type of identification key used in biology as it simplifies identifying unknown organisms.Simply put, it is a method used to identify a species by answering a series of questions based on contrasting features (eg: physical characteristics) that have two possible outcomes.
What is a Dichotomous KeyStudents and professionals use the dichotomous key to identify and classify objects (i.e. people, animals, plants, bacteria, etc.) into specific categories based on their characteristics. It’s the most commonly used form of classification or type of identification key used in biology as it simplifies identifying unknown organisms.Simply put, it is a method used to identify a species by answering a series of questions based on contrasting features (eg: physical characteristics) that have two possible outcomes.“Dichotomous” means divided into two parts, hence the dichotomous keys always present two choices based on the key characteristics of the organism in each step. By correctly selecting the right choice at each stage, the user will be able to identify the name of the organism at the end. The further you divide the key, the more you learn about the specimen you are trying to identify.
What is a Dichotomous KeyStudents and professionals use the dichotomous key to identify and classify objects (i.e. people, animals, plants, bacteria, etc.) into specific categories based on their characteristics. It’s the most commonly used form of classification or type of identification key used in biology as it simplifies identifying unknown organisms.Simply put, it is a method used to identify a species by answering a series of questions based on contrasting features (eg: physical characteristics) that have two possible outcomes.“Dichotomous” means divided into two parts, hence the dichotomous keys always present two choices based on the key characteristics of the organism in each step. By correctly selecting the right choice at each stage, the user will be able to identify the name of the organism at the end. The further you divide the key, the more you learn about the specimen you are trying to identify.When creating a dichotomous key, both qualitative (i.e. physical attributes such as how the organism looks, what color it is, etc.) and quantitative (i.e. the number of legs, weight, height, etc.) factors are considered.
What is a Dichotomous KeyStudents and professionals use the dichotomous key to identify and classify objects (i.e. people, animals, plants, bacteria, etc.) into specific categories based on their characteristics. It’s the most commonly used form of classification or type of identification key used in biology as it simplifies identifying unknown organisms.Simply put, it is a method used to identify a species by answering a series of questions based on contrasting features (eg: physical characteristics) that have two possible outcomes.“Dichotomous” means divided into two parts, hence the dichotomous keys always present two choices based on the key characteristics of the organism in each step. By correctly selecting the right choice at each stage, the user will be able to identify the name of the organism at the end. The further you divide the key, the more you learn about the specimen you are trying to identify.When creating a dichotomous key, both qualitative (i.e. physical attributes such as how the organism looks, what color it is, etc.) and quantitative (i.e. the number of legs, weight, height, etc.) factors are considered.It can be done in both a graphical (as a branching flowchart) or written format (series of paired statements organized sequentially). Most often, they are used to identify plant and animal species, although it can be used to classify any object that can be identified by a set of observable characteristics.
HELP PLEASE!!!!
An organic molecule that acts as the main energy source for cell processes. It is a carbohydrate and a product of photosynthesis.
a.oxygen
b. hydrogen ion
c. chlorophyll
d. glucose
Answer:
d
Explanation:
glucose is the only carbohydrate out of of all the optionsglucose is the main energy source for cell respirationglucose is the product of photosynthesis, O2 is the byproduct of photosynthesisPLEASE HELP MARKING PEOPLE AS BRAINLIDT
Where do humans obtain essential amino acids?
A. Pasta and bread foods B. Meat/Fish foods
C. Our body makes them D. Foods that contain butter and oils
Answer:
B.
Explanation:
Answer:
B) meat/fish foods should be the correct answer
Need answer quick please!!
Which statement best summarizes how a parasite such as a tapeworm
causes disease?
A. Parasites use living cells to make new copies of themselves.
B. Parasites reproduce best in warm, moist environments.
C. Parasites are made up of genetic material surrounded by a
protein.
D. Parasites take nutrients from another organism's body.
lo
Answer:
D. Parasites take nutrients from another organism's body
Parasites by definition leech off of their hosts by stealing nutrients
Why is knowing information about embryo development important?
Answer:
It helps you understand how life forms and what it takes for life to develop as well as the changes through this life cycle
Explanation:
Knowing information about embryo development is important because it helps us to understand how an organism grows and develops from a single cell into a complex being.
Why knowledge about embryo development important?An embryo is the stage of development that follows fertilization and begins when the zygote, a single cell formed by the union of a sperm and egg, begins to divide and differentiate into the various cell types that will make up the organism.
This knowledge can be used in various fields, such as reproductive medicine, to help improve fertility treatments and increase the chances of successful pregnancies. It can also be used in fields such as genetics and evolutionary biology to understand how traits are inherited and how species have evolved over time. Understanding embryo development can also provide insights into the causes of birth defects and developmental disorders, and help researchers develop treatments or interventions to improve the health and well-being of individuals.
Learn more about embryogenesis, here:
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Question 47
2 pts
If our body could not do any anabolic chemical reactions for a short time
then during that time our body would not be able to...
o Maintain a constant temperature around 98 degrees fahrenheit
O Burn sugar and fat
O Move
O Make new cells
Question 48
2 pts
A biologist pollinates a true-breeding yellow flower with pollen from a true-breeding
red flower of the same species. All of the F, offspring are yellow. What question can be
answered with the F2 cross?
A. Are yellow flowers maternally inherited?
B. Are yellow flowers recessive and red flowers dominant?
C. Are red and yellow flowers codominant?
D. Is flower color polygenic?
Answer:
Honestly i dont know the answer but for anyone who needs it it is NOT D i put that as the answer for my test and got it wrong
Explanation:
NOT D
hope this helps:)
A biologist pollinates a true-breeding yellow flower with pollen from a true-breeding red flower of the same species. All of the F, offspring are yellow. The question can be Is flower color polygenic?
What is True breeding plant?A true breeding is a kind of breeding wherein the parents would produce offspring that would carry the same phenotype. This means that the parents are homozygous for every trait.
An example of true breeding is that of the Aberdeen Angus cattle. The cattle have been black for many generations, which is an indication that such trait passed on from many generations remains pure.
With plants, true breeding occurs when plants produce only offspring of the same variety when they self-pollinate. For instance, a plant that has blue flowers will produce only seeds that will grow into plants that have blue flowers.
Therefore, A biologist pollinates a true-breeding yellow flower with pollen from a true-breeding red flower of the same species. All of the F, offspring are yellow. The question can be Is flower color polygenic?
To learn more about True breeding, refer to the link:
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Which of the following is NOT an example of natural selection?
a. Plants with thorns are less likely to be eaten by herbivores than other members of the same species that lack thorns.
b. Bacterial populations in hospitals develop resistance to drugs used to combat infection by them.
c. Scientists breed cows that give greater amounts of milk than their ancestors.
d. Fruit fly larvae with an enzyme to break down alcohol are better able to feed on fermenting fruit than those that lack the enzyme.
e. Female fish that produce more eggs leave more offspring than those that produce fewer eggs.
Answer:
A
Explanation:
Answer: C
Explanation:
It is not natural selection because the scientist are making to where the next cow generations produce more milk instead of nature doing the work over time.
Marine Food Chain
Question 3
Orca
Sea otter
Based on the food chain, which organism is a producer?
A: Orca
B; Sea Otter
C: Fishes
|-*
Fishes
Seaweed
D: Seaweed
Which organism is an autotroph?
Answer:
Not sure let me pull out my notes but seems good
Explanation:
Answer:
flower
Explanation:
which of the following would be a hypothesis for a scientific investigation about how food shopping decisions affect food security
Answer:
Isn't there any photo or some options at least? Actually, it says which of the following-that's why I asked
Explanation:
If you add something as a reference then I will be able to answer and help you :)
How can point and frameshift mutations contribute to biodiversity of Earth? Explain your
answer.
Answer:
These mutations form new alleles that increase genetic variation in a population. This variation may lead to new species which increases biodiversity.
Explanation:
Mutations are randomly occurring modifications that exist within the genetic code, leading to replication errors in DNA. DNA molecules are long-chain, helical macromolecules that store genetic material. They consist of different monomer sequences called nucleotides. In a reading frame, which contains instructions for protein production, they shape base pairs and codon sequences.
Single nucleotide polymorphisms are normal, as silent mutations, which sometimes result in no changes in amino acids. Some mistakes add a random nucleotide (SNP) in point mutations resulting in new alleles.
Frameshift mutations occur from nucleotide insertions or deletions that are not divisible by 3. This results in the codon requiring more or fewer nucleotides which disrupt the reading frame, resulting in a separate protein translation.
which type of chemical change will produce ash A.burning B.melting C.rotting D.rusting help please
will give a 100 points assap
Clem is h o m o zygous for earlobe type.
What does this mean?
He has two of the same alleles for earlobe type, one from each parent.
He has two different alleles for earlobe type, one from each parent.
He has one allele for earlobe type from one parent.
He has two alleles for earlobe type, both from the same parent.
Answer:
A
Explanation:
Answer:
a
Explanation:
what is the relationship between exposing to a virus and developing immunity to it? cite evidence from the text to support your response
Answer:
Exposure to a virus is closely related to the development of immunity, since the immune system is responsible for creating antibodies in response to the presence of potentially harmful biological agents, such as these viruses.
Explanation:
Viruses are biological agents that can produce diseases when they enter the body of a living being. In response to contact with a virus, the immune system synthesizes specific antibodies to combat the foreign biological agent.
Antibody immunity can be of two types. It is fast when it is mediated by immunoglobulins M (IgM), which attack the virus anywhere, while the late and prolonged response is due to the development of immunoglobulins G (IgG).
An example of immunity to a virus occurs with the exhibition to the virus of the Dengue, that creates permanent immunity to the viral serotype to which an individual is exposed.
The acquired immunity, mediated by antibodies, is the base for the development of vaccines.
Why are bacterial cells often used as a host for genetic manipulation?
Answer:
Explanation:
because bacteria reproduce and make proteins very quickly , because the plasmids in bacteria also contain nucleotide sequences called restriction sites that can be cut easily by enzyme.
what is brain cancer ?
Answer:
Brain cancer is an overgrowth of cells in your brain that forms masses called tumors. Cancerous, or malignant, brain tumors tend to grow very quickly. The symptoms of brain cancer depend on the size and location of the tumor.
Common brain cancer symptoms include:
headaches that are usually worse in the morning
nausea
vomiting
a lack of coordination
a lack of balance
difficulty walking
memory lapses
difficulty thinking ,speech problems
.Many of the symptoms of brain cancer are also caused by other, less serious conditions. There’s no need to panic if you’re experiencing these symptoms, but it’s a good idea to visit your doctor to have your symptoms investigated, just in case.
Explanation: