b. Capillaries are vessels through which nutrient and gas exchange take place.
Capillaries are the smallest blood vessels in the body and are responsible for facilitating the exchange of nutrients, gases, and waste products between the bloodstream and surrounding tissues. They connect the arterioles (small branches of arteries) and venules (small branches of veins).
Capillaries have thin and permeable walls, consisting of a single layer of endothelial cells. This structure allows for the exchange of substances between the blood and surrounding tissues. Oxygen and nutrients diffuse out of the capillaries into the tissues, while carbon dioxide and waste products from cellular metabolism diffuse into the capillaries to be carried away.
The extensive network of capillaries ensures that every cell in the body is located in close proximity to a capillary, allowing for efficient exchange of substances. This exchange includes the delivery of oxygen and nutrients to the cells, as well as the removal of carbon dioxide and waste products.
While blood cells, such as red blood cells and white blood cells, are present in the capillaries, they are not the defining characteristic of capillaries. Instead, capillaries are primarily associated with facilitating the exchange of substances between the bloodstream and the surrounding tissues.
Therefore, option b is the correct answer as it accurately describes the role of capillaries in facilitating nutrient and gas exchange.
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What is not a following factor influencing natural selection
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Answer:
first option for the first question and second option for the second question.
Explanation:
S.O.H.O. was in space near ACE. What is ACE?
Answer:
SOlar Heliospheric Observatory/ACE also provides near-real-time 24/7 continuous coverage of solar wind parameters and solar energetic particle intensities (space weather) /Advanced Composition Explorer (ACE)
Explanation:
One random marine biology fact!
Answer: Boxer crabs carry two anemones around looking like pom poms.
Explanation:
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You worked on Earthquake Engineering Design Challenge during the last three parts. Please upload your S.T.E.M. Lab Earthquake Engineering Design Challenge worksheet. Make sure that you have answered all parts for Steps 1–13 and your work is shown on the worksheet and double check your work. When you are sure that you have answered all of the Steps accurately, please upload your worksheet.
30 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!
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Answer:
its easy just read it
Explanation:
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Complete the following statements.
The difference in charge across the membrane is called the
It is measured in
At resting potential, the charge of the outside of the neuron is
the inside is
and
Once a stimulus changes the membrane potential, the neuron conducts an impulse called a(n)
This causes the charge outside the cell to temporarily become
and the inside to temporarily become
When the action potential arrives at the axon terminal it reaches a junction called the
Because the nerve impulse cannot cross the synaptic cleft, neurotransmitters are released.
ANSWERS IN ORDER
MEMBRANE POTENTIAL
VOLTS
POSITIVE
NEGATIVE
ACTION POTENTIAL
NEGATIVE
POSITIVE
SYNAPSE
NEUROTRANSMITTERS
Answer:
check the question the answers are in the question
Explanation:
they're all right frome edge 2020
Igneous rocks form when magma?
Answer:
Igneous rocks form when magma (molten rock) cools and crystallizes, either at volcanoes on the surface of the Earth.
Answer:
No metamorphic is Magma & Sedimentary is from sand, Igneous is solid rock
Explanation:
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Match the following definitions with the correct terms:
1. BB or Bb
2. purple-flower or white flower
3. Bb
4. Used to predict the possible genotypes and phenotypes from a genetic cross
Options to choose from:
- Genotype
- Heterozygous
- Phenotype
- Punnett square
How many protons would the element with the atomic number 10 contain?
Answer: 10
Explanation:
32 POINTS!!
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Phosphorus (P) is the element with the atomic number 15. Which of the
following correctly compares 31 and 32p, which are two isotopes of
phosphorus?
A. Both isotopes contain 15 protons.
B. 31P has 30 protons, whereas 32P has 31 protons.
c. 31P has 31 neutrons, whereas 32p has 32 neutrons.
D. Both isotopes contain 17 neutrons.
Answer: A both isotopes contain 15 protons.
Explanation:
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Should everyone use
paper or plastic grocery bags?
A gene consists of which of the following?
1) A sequence of amino acids that create a specific protein.
2) A sequence of tRNA that brings the correct amino acid to the ribosome.
3) A sequence of bases of mRNA that code for a specific protein.
4) A sequence of bases on DNA that code for a specific protein.
Answer:
answer is part (4)
Explanation:
A sequence of bases on DNA that code for a specific protein
4) A sequence of bases on DNA that code for a specific protein.
Gene:A gene is the basic physical and functional unit of heredity.Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. Alleles are forms of the same gene with small differences in their sequence of DNA bases.Every person has two copies of each gene, one inherited from each parent.Thus, option 4 is correct.
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if each of tree has 163 species of beetles that are found only on that type of tree but no others, how many species of beetles are there in tropical trees?
Answer:
226 is your answer pls mark brainlest
In a certain species of mammals, gray fur (G) is dominant to white fur (8) and brown eyes (B) are
dominant to blue eyes (b). An animal with white fur and blue eyes is crossed with an animal that has
gray fur and brown eyes (GGBb). What trait will appear in all of the offspring of this mating?
Gray fur (G) trait will appear in all of the offspring of this mating.
This is because one parent has GG. Even if the other parent has gg, all the offspring will have Gg and G is dominant.
Dominant and Recessive traits:Dominant and recessive traits exist when a trait has two different forms at the gene level.
The trait that first appears or is visibly expressed in the organism is called the dominant trait. The trait that is present at the gene level but is masked and does not show itself in the organism is called the recessive trait.Learn more:
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You accidentally cut yourself working on an engineering project, and soon the cut begins to heal.
Asexual reproduction
Sexual reproduction
Lionfish are native to the tropical waters of the Indo-Pacific. What conclusions can be made about the impact of climate change on the range of lionfish and, therefore, on biodiversity?
Answer:
The correct answer is - Climate change has restricted the habitat of lionfish. It has become an endangered species, reducing biodiversity.
Explanation:
As we know it is native to the tropical waters of the Indo-Pacific region. The change in the climate will increase the temperature of the water and this will lead to the restriction of habitat which lead to the reduction in the population of the fishes. As they live in the tropical climate they are habitual of warmer water and can not survive the climate change.
Which molecule can be classified as saturated or unsaturated? *
a) carbohydrate
b) protein
c) lipid
d) nucleic acid
Answer:be careful for anonumas1
Explanation:
What does it mean for a trait to be dominant?
A.That it will be hidden by the recessive trait and not show up in the offspring.
B.That it will be the allele that will be shown in the offspring.
Answer:
B
Explanation:
Answer:
B. That it will be the allele that will be shown in the offspring
Explanation:
If something is dominant, that means it's stronger or more assertive. Think of an alpha wolf. It is dominant and is more assertive over its pack. The same is true for alleles (in most cases)
Where would a frameshift mutation cause the most damage?
Near the very end of the gene
Near the beginning of the gene
Near the center of the gene
All frameshift mutations are equal
Answer:
All frameshift mutations are equal
Explanation:
Frameshift mutation is a type of mutation caused by insertion or deletion of nucleotide base(s) in a genetic sequence causing that sequence to be read in a different way from what was originally planned.
The bases in the sequence of a gene is read in three's (codon), however, when one or more bases is added (insertion) or removed (deleted), the reading frame is altered causing the sequence to be read in a completely different order that can result in a protein that is non-functional.
However, FRAMESHIFT MUTATION is so potent that it affects the sequence no matter where it occurs. In other words, the effect of all frameshift mutations are equal.
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Answer:
hi there!!
Explanation:
It is gaining water because it is growing.
When the environment changes, organisms need to ______ or ____ to survive.
Answer:
adapt & evolve
Explanation:
When the environment changes, organisms need to adapt or evolve to survive.
How organisms adapt and survive to the changing environment?Natural selection is the process that results in this. Natural selection causes a species' nature to progressively change so that it can fit into the niche. A species can persist for a very long time before going extinct.
Environmental changes affect whether species are able to reproduce and survive, and this can result in population-level evolution. descent while being modified.
The process by which organisms adapt to their environment in order to increase their chances of surviving in that environment is known as evolutionary adaptation, or simply adaptation.
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Answer:
D- The code of chivalry by European knights
Explanation:
Bushido (武士道, "the way of the warrior") is a moral code concerning samurai attitudes, behavior and lifestyle. It is loosely analogous to the European concept of chivalry. There are multiple Bushido types which evolved significantly through history.
Fill in the missing bases in the following picture:
Answer:
1: G to C
2: C to G
3: T to A
4: G to C
5: T to A
Explanation:
look at number 1 and number 4, they have the same box. Along with 3 and 4 they have the same arrow.
Respiration produces energy in the form of
Select one:
glucose
АТР.
carbon dioxide
ribose
Answer:
The answer is: ATP
Answer:
it produces energy in the form of atp.
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Answer:
the angle of diffraction is directly proportional to the size of the wavelength. this is why red light (long wavelength) diffracts more than blue light (short wavelength). And radio waves (really long wavelength) diffract more than X-rays (really short wavelengths)
In any given population, certain individuals are more able than others to adjust to environmental changes. Some of these changes are temperature, food supply, pollution, and
A.
increase in offspring.
B.
change of habitat.
C.
decrease of predators.
D.
loss of population group.
Answer: B change of habitat.
A farmer grows several crops on a farm that has mostly shallow, sandy soil, meaning they have
a low water storage capacity and a high infiltration rate. Which of the following irrigation
methods would be the best suited for this farm?
Select one:
O a. Drip irrigation
O b. Surface irrigation
O c. Flood irrigation
O d. Furrow irrigation
For a sandy soil farmer should use drip irrigation method over surface irrigation.
Sandy soils have a low water storage capacity and a high infiltration rate. Therefore they need frequent but small irrigation methods, drip irrigation is most suitable method than surface irrigation.
In other irrigation methods such as Surface irrigation, Flood irrigation, Furrow irrigation water is discharged in quite large amounts but the soil lost it due to the high infiltration rate.
Therefore, for a sandy soil farmer should use drip irrigation method over surface irrigation.
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what is digestion? Starting from mouth, state the various steps involved in digestion
Answer:
The gastrointestinal system starts in the mouth. In reality, as soon as you eat the first bite, digestion begins here. Chewing splits the meal into sections that are easier to eat, and saliva combines with food to start breaking down the body into a shape that you can consume and use.
Explanation:
The mechanism of digestion can be divided into various phases, such as mouth, stomach, small and large intestine.
A complicated mixture of mechanical and chemical processes are used in digestion. The mechanism includes food intake and push, mechanical or physical digestion, chemical digestion, absorption, and defeat.
Which line represents a reaction with an enzyme? (A or B)
Answer:
b
Explanation:
Answer:
B
Explanation:
Line b is closer to the enzyme, and that is making it closer to the reactants and the products. the course of reactants is going right, and the top line is going left, so there fore it is the bottom line, or line b.