A blood platelet drifts along with the flow of blood through an artery that is partially blocked. As the platelet moves from the wide region into the narrow region, the blood pressure: reduces
A blood platelet floats with the blood as it passes through a partially clogged artery. The pressure on platelet reduces as the platelet advances from the large zone to the narrow partially obstructed region.Thermal pressure is the term used in thermodynamics to describe the change in relative pressure that a fluid or solid experiences in response to a change in temperature at a constant volume. It has to deal with the Pressure-Temperature Law, often known as Gay Lusac's Law or Amontons' Law. When heated to a steady pressure, a gas expands, which causes it to cool through expansion. The requirement to add more thermal energy leads to the formula for specific heat at constant pressure: CP = CV + R per mole.
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Living organisms can be classified as prokaryotes or eukaryotes. Which two structures are common to both prokaryotic and eukaryotic cells?.
Answer:
The cells of all prokaryotes and eukaryotes possess two basic features: a plasma membrane, also called a cell membrane, and cytoplasm.
Explanation:
Since membranes are relatively impermeable to ions, most of the protons re-enter the matrix by passing through special channels in the inner mitochondrial membrane. Because of the inward flow of protons these channels allow the synthesis of.
Since membranes are relatively impermeable to ions, most of the protons re-enter the matrix by passing through special channels in the inner mitochondrial membrane. Because of the inward flow of protons these channels allow the synthesis of ATP from ADP and Pi.
The electrons float thru the electron shipping chain, inflicting protons to be pumped from the matrix to the intermembrane area. Eventually, the electrons are surpassed to oxygen, which mixes with protons to shape water.
This is because it consists of proteins referred to as porins, which shape channels that permit the unfastened diffusion of molecules smaller than approximately 6000 daltons. The composition of the intermembrane area is consequently much like the cytosol with admire to ions and small molecules.
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Which of the following is not a principle of natural selection? Evolution will occur as an organism gets older. and learns more Most species produce more offspring than will actually survive Organisms compete for limited resources adaptations allow some organisms to survive and rcproduce bctter than In every population; others
Thus, according to Charles Darwin's many conceptions of natural when each species tries to generate a greater number of offspring in order to ensure the reproductive survival of the species.
Charles Darwin wrote Original Species, the first scientific work to discuss natural selection. Therefore, if they have as many offspring as possible, at least some of them will live. And when the reproductive population is large and there are few natural resources available, competition for those few resources begins. Nature forbids offspring growth that exceeds carrying capacity. As a result, reproductive fitness improves.
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Select the best choice to match the description. Answers may be used more than once or not at all.This Starling force is roughly double the pressure in regular systemic capillaries because the amount of blood flow to the kidneys is 2X greater.
Glomerular hydrostatic pressure is the Starling force that is roughly double the pressure in regular systemic capillaries because the amount of blood flow to the kidneys is 2X greater.
Glomerular blood hydrostatic pressure (GBHP) promotes filtration by forcing blood plasma water and solutes through the glomerular filter. The glomerular capillary blood pressure (GBHP) is approximately 55mm Hg. 2. The backpressure that opposes filtration is known as capsular hydrostatic pressure (CHP). The afferent and efferent arteriolar resistance, as well as the renal artery pressure, influence the glomerular capillary hydrostatic pressure (3). An increase in afferent arteriolar diameter (a decrease in resistance) results in an increase in glomerular capillary hydrostatic pressure and GFR.
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Explain the role of photosynthesis in the pond ecosystem. In your explanation, discuss whether or not the organisms that daniel studied depend on photosynthesis, either directly or indirectly.
We can infer from the proposed food chain of algae-snail-sunfish-heron that photosynthesis plays a significant role in this food chain.
While snails, sunfish, and herons are indirectly dependent on photosynthesis, algae are the only organisms that rely on it directly for survival. Since we're talking about a food chain, it basically means that all living things are interconnected. The snail uses the algae as food, the sunfish eats the snail later, and the heron consumes the sunfish. As a result, the algae produce photosynthesis for their own life.If the algae, for some reason, are unable to carry out photosynthesis, then they will eventually die off. If the algae die off, then the snail will also perish for lack of food, and if the sunfish also perishes for lack of food, then the heron also perishes.Therefore, we can draw the conclusion that photosynthesis, whether directly or indirectly, essential for the existence of all four species.
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the part of corn that is used for fuel or food for humans is the a) fruit. b) zygote. c) root. d) flower.
The fruit is the part of corn that is used for fuel or food. The correct answer is option(a).
In an agricultural sense, a fruit is an overweight or dry matured ovary of a blooming plant, surrounding the source or sources. Apricots, insane, and especially of wine, in addition to grain pods, grain grains, tomatoes, cucumbers, and (in their coverings) acorns and almonds, are all technically fruits.
Corn is rich in source of nourishment C, an antioxidant that helps insulate your containers from damage and defends against afflictions like tumors and congestive heart failure. Corn is a good beginning of the carotenoids lutein and zeaxanthin, which are adapted to eye well-being and help bar the glass damage that leads to cataracts. Ethanol is a domestically created alternative fuel most usually from Corn.
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Help I don’t know thissss
the answer is silk
Explanation:
which of the following is true of the genetic code? select all that apply. each amino acid is specified by only one codon. it is virtually universal. codons specify amino acids. it is redundant.
The following that is true about the genetic code is that each amino acid is determined by only one codon.
What are codons?The genetic code (codon) is a series of nucleotide coding sequences in DNA or RNA to determine the sequence of amino acids during protein synthesis.
The codons are located on the mRNA molecule. The translation of mRNA into protein is carried out at the coding segment that is flanked by a start codon (AUG) and an end codon (UAA, UAG, or UGA), these segments are called genes. The codons on the mRNA molecule can code for amino acids with the help of the interpretation of the codons by the tRNA.
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Do we need to be concerned with the wave nature of the blood cells when we describe the flow of blood in the body?.
Blood is evacuated when the heart beats, creating a pulse wave that moves through the circulatory system. This wave's measurement, which we refer to as the blood pulse wave (BPw), describes both the wave's form and rhythm.
Why does the blood flow differ?Circulation problems can result from plaque buildup, blood clots, or constricted blood vessels. Your body struggles to efficiently distribute blood to every part of your body when impediments or congested areas restrict blood flow.
What does a blood flow that is turbulent mean?Laminar flow is a characteristic of a healthy artery, such as the femoral artery. When the flow channel becomes disordered, layers fail to form, and eddy currents develop, the scenario is referred to as turbulent flow.
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krapina, croatia, is an unusual neandertal site with some interesting characteristics. identify the correct statements about krapina. The Krapina Neandertals have relatively large incisors and relatively small cheek teeth. Quite a few of the highly fragmented bones from Krapina have clear cutmarks, indicating butchery. Even though the site was excavated more than a century ago, it was excavated very carefully. Most of the Krapina Neandertal remains are whole bones in nearly complete skeletons.
Describes Site of Krapina:
Even though the site was excavated more than a century ago, it was excavated very carefully.Quite a few of the highly fragmented bones from Krapina have clear cutmarks, indicating butchery.The Krapina Neandertals have relatively large incisors and relatively small cheek teeth.Does Not Describe Site of Krapina:
Most of the Krapina Neandertal remains are whole bones in nearly complete skeletons.What is bones?
The skeleton of the human body is made up of bones, which are living tissues. The following 3 forms of bone tissue are among them: dense tissue the denser, outer bone tissue.
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consider a negatively charged protein adsorbed on anion-exchange gel at ph 8. (a) how will a gradient from ph 8 to some lower ph be use- ful for eluting the protein?
The protein becomes protonated as the pH is dropped, which results in a reduction in the negative charge's intensity. Protein retention weakens over time.
Ionizable compounds are separated using ion exchange chromatography according to their overall charge. Because the charge carried by the target molecule can be easily controlled by altering buffer pH, this technique makes it possible to separate comparable sorts of molecules that would be challenging to separate by other techniques.
To separate charged biological components like proteins, peptides, amino acids, or nucleotides, ion exchange chromatography is frequently utilized. Protein is made up of amino acids, which are zwitterionic substances that have both positively and negatively charged chemical groups. Proteins can have a net positive charge, a net negative charge, or no charge depending on the pH of their surroundings. The isoelectric point, or pI, of a molecule, is the pH at which there is no net charge.
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the direct antiglobulin test (dat) is most unreliable when diagnosing hemolytic disease of the fetus and newborn due to which blood group system?
The direct antiglobulin test (dat) is most unreliable when diagnosing hemolytic disease of the fetus and newborn due to ABO system.
Define hemolytic disease of the fetus and newborn.
When maternal red blood cell (RBC) or blood group antibodies penetrate the placenta during pregnancy and induce fetal red cell death, it is known as hemolytic disease of the fetus and newborn (HDFN), which is an uncommon disorder. In addition to edema, ascites, hydrops, heart failure, and mortality, the fetal physiological effects of severe anemia in the fetus can also cause these conditions.
DAT is mainly used to detect Rh D hemolytic disease of the newborn .
When a newborn is born to a mother who is at risk or shows symptoms of hemolytic disease, a DAT test may be requested, provided there are no other obvious causes of the symptoms. A positive DAT indicates that the RBCs have antibodies attached. However, this does not always correspond to the severity of symptoms, especially if the RBCs have already been destroyed. In general, the stronger the DAT reaction (the more positive the test), the greater the amount of antibody bound to the RBCs.
A negative DAT indicates that your RBCs are most likely not coated with antibodies, and further research is necessary to determine the cause of the symptoms and signs.
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some biologists prefer to focus efforts on preserving endangered species while others prefer to focus on preserving ecosystems. what is your advice to biologists that are choosing which way to follow?
There are strong justifications for both strategies; no one method is the best. It is impossible to conserve orangutans without also conserving their ecology in a situation like the Borneo orangutans. On the other hand, saving a piece of forest is considerably harder to accomplish than saving a charismatic creature like an orangutan. The relative relevance of each sort of effort will vary depending on the situation.
What is Ecosystem?
An ecosystem is made up of all the living things—plants, animals, and other organisms—that may be found in a specific location and how they interact with one another and their non-living surroundings. Each organism in an ecosystem has a certain niche or function to perform.
The health of the entire Earth system is determined by ecosystems, which are the basis of the biosphere.
English botanist Sir Arthur George Tansley is credited with introducing the idea of the ecosystem to biology.
Phylum, phylogeny, and ecology are just a few of the terms that Ernst Heinrich Philipp August (1834–1919), a German biologist, naturalist philosopher, physician, professor, marine biologist, and artist, invented. He also discovered, described, and named thousands of new species and mapped a genealogical tree connecting all life forms.
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when the two receptors bind to the dna half-sites of the hormone response element, they form a heterodimer.when the two receptors bind to the dna half-sites of the hormone response element, they form a heterodimer.
A heterodimer is created when two receptors attach to the hormone response element's DNA half-sites.This is a combination of two separate kinds of molecules that control the expression of genes.
Haemoglobin (shown), the NMDA receptor, some aquaporins, some AMPA receptors, and some enzymes are examples of heterotetramers.
Depending on the type of receptors and the precise sequence of the hormone response element, the binding of the heterodimer to the hormone response element can either activate or inhibit the production of particular genes.
Numerous physiological processes, such as growth and development, metabolism, and the body's reaction to external stimuli, are controlled by this mechanism.
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f the 8 wolves could not successfully interbreed with the island population, which species concept would classify the two populations as separate species?
The biological species idea states that a species is a collection of populations with the ability to interbreed.
A species is an organism in biology that has the ability to interbreed and produce fertile progeny. In the taxonomic classification system,'species' is a classification category that comer the taxonomy of 'genus. According to the biological species idea, a population is any group of species that are cohabiting in a certain location at a specific time. An ecosystem's biotic and abiotic elements interact with a population of species. According to the biological theory, a species' chances of survival increase with how well it is suited to an ecosystem.
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Cell division is the process of taking a parent cell and splitting it into 2 new genetically identical daughter cells. All organisms go through the process of cell division. What do bacteria use cell division for and how?.
Chromosome replication, segregation of the copied DNA, and cytoplasmic division of the parent cell are all components of this process.
What stage of the cell cycle is a single cell at when it divides into two cells?The cell divides into two new cells during the mitotic (M) phase using its replicated DNA and cytoplasm.Two distinct mechanisms related to cell division that take place during the M phase are mitosis and cytokinesis.
What are the new cells called when a bacterial cell divides into two as it grows?The new cells formed when a bacteria cell divides into two are known as daughter cells. Sterilization is the process that completely annihilates all microbial life, including spores.
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how are leukocytes (neutrophils and macrophages) signaled where to leave the circulation and enter the infection site? g
They do this by diapedesis, a process in which the leukocyte travels ameboid-like via closely apposed endothelial boundaries (paracellular transmigration) and, in some circumstances, through the endothelial cell itself (transcellular migration).
Neutrophils are generally present in the bloodstream, but they move quickly to infection sites in tissue. The trans-endothelial migration (TEM) of neutrophils can proceed either directly via individual endothelial cells (the transcellular pathway) or between them (the paracellular route)
Leukocytes move via gaps between blood vessel cells, and the process of attachment to transit through the blood vessel wall is referred to as diapedesis. Diapedesis is followed by a migration of leukocytes toward infection sites defined by a high concentration of inflammatory proteins.
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what is the name of the triangularly shaped structures in the medulla of a kidney that contain the nephrons?
Answer: renal pyramids
Explanation:
What characteristic of short tandem repeat dna makes it useful for dna fingerprinting?.
From one person or organism to another, the number of repetitions varies greatly. Between individuals, there are large differences in the repeating DNA sequence.
What qualities do brief tandem repeats have?Short tandem repeats (STRs), sometimes referred to as microsatellites or simple sequence repeats, are short tandemly repeated DNA sequences that have a repetitive unit of 1-6 bp and can be arranged in series of up to 100 nucleotides in length. Prokaryotes and eukaryotes, including humans, frequently include STRs.
What benefits do quick tandem repeats offer?The ability to identify the male component even in extreme mixtures of male and female DNA is the main benefit of the Y-STR approach.
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if a mutation occurs in the somatic tissue, approximately how many of the gametes will carry the mutation?
None The only mutations that have a chance of being passed on to the progeny are those that affect the germ line and produce gametes.
How many alleles are found in somatic DNA?Every gene in somatic cells has two alleles, one from each of the organism's parents. It is frequently impossible to tell from an organism's outer appearance which two alleles of a gene are present within its chromosomes.
What happens when a somatic cell mutation takes place?Cancer is caused by somatic cell mutations, which happen in somatic cells and are passed on during mitosis. Meiosis, on the other hand, ensures that mutations in a gamete are passed on and produce mutant progeny. During DNA replication, a gene mutation occurs.
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true or false: the use of technology to modify organisms, cells, and their molecules to achieve practical benefits, primarily in agriculture, human health, and forensic science is referred to as biotechnology.
The correct option is true. Biotechnology is a branch where various cells and organisms are modified using the technology.
In its most basic form, biotechnology is simply technology based on biology; it uses cellular and biomolecular processes to create products and technologies that enhance both our quality of life and the health of the world. Moreover, early uses of biotechnology resulted in the creation of goods like bread and vaccinations. Nevertheless, the field has developed greatly over the past century in ways that allow for manipulation of the genetic makeup and biomolecular functions of living things.The most common method used by modern biotech applications is genetic engineering, sometimes referred to as recombinant DNA technology. The genetic cell structures are altered or interacted with in genetic engineering. Any animal or plant has genes that make proteins in every cell. The traits of the organism are determined by those proteins.
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Which proteins lends structural support to the chromosome and helps activate or silence gene expression?.
The structural support to the chromosomes is provided with the histones. Histones proteins lends structural support to the chromosome and helps activate or silence gene expression.
What is a chromosome ?
It is the genetic unit which is passed on via inheritance.
Histones are changed by the addition or removing chemical groups, such as methyl groups or acetyl groups (consisting of two carbon, three hydrogen, and one oxygen atoms).
Each of the Chromosome is containing a long piece of DNA that fits into the cell nucleus. DNA wraps around the histones complexes of histone proteins.
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the results of the kirby-bauer method of assessing antibiotic sensitivity can indicate whether or not the antibiotic has a bactericidal or bacteriostatic effect.
True, the results of the Kirby Bauer method of assessing antibiotic sensitivity can indicate whether or not the antibiotic has a bactericidal or bacteriostatic effect.
It is an antibiotic susceptibility test that employs bacterial cultures and agar medium for species inoculation - The Kirby-Bauer disc diffusion susceptibility test determines pathogenic bacteria's sensitivity or resistance to various antimicrobial compounds, assisting physicians in selecting treatment options for their patients. A Zone of Inhibition Test, also known as a Kirby-Bauer Test, is a qualitative method for measuring antibiotic resistance and testing the ability of solids and textiles to inhibit microbial growth.
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Some glucose produced by gluconeogenesis is stored in the body as glycogen. Order the steps of glycogen synthesis. Not all description accurately describe glycogen synthesis; therefore, not all the descriptions will be used. Pyrophosphates converts PPi and water into Pi. Glycogen synthase adds a glucose unit from UDP-glucose to glycogen, producing a a larger glycogen molecule and UDP. Glycogen synthase removes a glucose unit from a glycogen molecule producing a smaller glycogen molecule and UDP. ADP-glucose pyrophosphorylase catalyzes the reaction of glucose-1-phoshate and ATP to ADP-glucose and PPi. UDP-glucose-1-phosphate and and UTP to UDP-glucose and PPi.
The steps of glycogen synthesis are mention below :
UDP-glucose pyro phosphorylase catalyzes the reaction of glucose-1-phosphate and UTP to UDP-glucose and PP,Pyrophosphatase converts PP,i and water into two PiGlycogen synthase adds a glucose unit from UDP-glucose to glycogen, producing a larger glycogen molecule and UDPglucose enters the liver after a meal, and blood glucose levels rise. This excess glucose is handled by glycogenesis, which occurs when the liver converts glucose into glycogen for storage. The glucose that is not stored is used to generate energy through a process known as glycolysis. This happens in every cell of the body.
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The role of ceruminous glands is to __________.
a. produce sweat
b. produce earwax
c. produce mucus
d. produce sebum
e. produce melanin
Answer:
b
Explanation:
The ceruminous glands in the skin of the human external auditory canal are modified apocrine glands, which, together with sebaceous glands, produce the cerumen, the ear wax.
camels live in very dry habitats and do not need to consume water as frequently as animals in wetter habitats. what is a partial reason for this?
This energy is then used to move hydrogen ions from the matrix through the protein complexes into the intermembrane space. Draw blue arrows to show the movement of hydrogen ions across the membrane. Cross off the hydrogen ions in the matrix and draw them in the intermembrane space.
The energy is called as electron transport chain then used to move hydrogen ions from the matrix through the protein complexes into the intermembrane space.
The electron delivery chain is a chain of 4 protein complexes that couple redox reactions, growing an electrochemical gradient that results in the advent of ATP in a whole machine named oxidative phosphorylation. It takes place in mitochondria in each mobile breathing and photosynthesis. The procedure of forming ATP from the electron delivery chain is called oxidative phosphorylation.
Electrons carried through NADH + H+ and FADH2 are transferred to oxygen thru a chain of electron carriers, and ATPs are fashioned. Three ATPs are fashioned from every NADH + H+, and ATPs are fashioned for every FADH2 in eukaryotes Electron transport. During electron delivery, electricity is used to pump hydrogen ions throughout the mitochondrial internal membrane, from the matrix into the intermembrane space.
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Which substance is the chemical food source for the soybean plants? O glucose O sunlight O water O carbon dioxide
Answer:
glucose
Explanation:
all plants need to create glucose through photosynthesis in order to make atp
Uing the information and the Punnett quare that you created in Que-tion 8, determine whether brown-eyed parent can have a green-eyed child? If o, what are the genotype for green eye? I it more likely that thee parent would have a blue-eyed child or a green-eyed child?
25% Probability if blue is dominant to green.
Describe Children’s Eye Color,
The most common eye color is brown. We will therefore suppose that one parent possesses both an allele (gene) for brown eyes, Br, and a dominant trait for green eyes, G.
Since I'm unsure which of the two is dominant, we'll treat them both equally as co-dominant alleles (or green is recessive; it matters not). With blue manifesting itself, the other parent possesses the alleles Bl for blue eyes and G for green eyes.
Your possibilities are BrBl (25%), BrG (25%), BlG (25%) and GG (25%), according to a Punnet square.
Meaning that there is a 50% probability of having brown eyes and a 25–50% chance of having green eyes (50% if blue and green have equal dominance; 25% if blue is dominant to green).
But don't be fooled by numbers; anything is possible when the likelihood of it occurring exceeds 0%. That is, a mother like that may give birth to six kids, all of whom would have green eyes. These percentages are merely probabilities, not assurances, of events occurring.
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4. compare and contrast the lymphatic system and immune system. how are these systems different and how do they work together?
The lymphatic and immune systems work together by taking action against disease-causing agents. But the immune system is to fight diseases and the lymphatic system is to check abnormalities.
The formation and maturation of lymphocytes that differentiate into B and T lymphocytes take place in the primary lymphoid organs of the lymphatic system. Since the lymphatic system transports antibodies, lymphocytes, and pathogens along with lymph, it acts as the body's first line of defense against infections. In secondary lymphoid tissues, lymphocytes come into contact with the pathogens and multiply to become actively participating cells. The spleen filters blood while also exposing pathogens to lymphocytes and macrophages, which then destroy them.
The cells are produced by the immune system and can be kept in lymph nodes. Consider the immune cells as traveling on a freeway with rest spots along the lymphatic system.
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