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VikaD [51]
3 years ago
11

How does oxygen move from the respiratory system to the circulatory

Biology
1 answer:
slamgirl [31]3 years ago
8 0

Answer:

D. By diffusion across a capillary wall

Explanation:

D is the best answer because gas exchange takes place in our lungs. Our lungs have alveoli which have a network of tiny blood vessels called capillaries, here the O2 diffuses the capillary wall to enter the bloodstream, and similarly CO2 diffuses out and we exhale it our from our lungs.

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Which statement best describes the components of nucleic acids?
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<span>They are made up of nitrogenous bases, sugars, and phosphates. Nucleic acids are molecules like DNA and RNA. The sugars and phosphates form the "backbone", and the nitrogenous bases are what actually holds the genetic information.</span>
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Maintaining a rich variety of genetic material that may lead to discoveries
Elis [28]

Answer:

Maintaining a rich variety of genetic material that can lead to discoveries  useful for humans can be ensured by preserving biodiversity.

Explanation:

Options for this question are:

  • <em>Preserving biodiversity .</em>
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Biodiversity refers to the number of different living organisms that exist, and which are the product of evolution, those that have multiple ways of interacting, shaping life on the planet.

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An important characteristic of biodiversity is that it contains the different genetic information of each living being, each one of which is a functional element on which the maintenance of life on the planet depends, as well as the reservoir of the world's genetic potential, so it is necessary to guarantee its preservation.

Learn more:

Importance of preserving biodiversity brainly.com/question/771316

6 0
3 years ago
How many sphincters does the digestive system have?
gtnhenbr [62]
The answer to this question is seven 
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4 years ago
Why would increasing the synthesis of fetal hemoglobin result in alleviating the symptoms of sickle cell anemia?
Leto [7]
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7 0
3 years ago
Just need help on question e please :) it’s due tomorrow
3241004551 [841]

Answer:

it's related to the factors of diffusion, in this case...

the molecule is small, the mass of it is a factor of diffusion, since it's smaller, it can diffuse quickly, since it has less weight, so it moves faster.

When the cell increases in size, the volume increases faster than the surface area, when there is more volume and less surface area, diffusion takes longer and is less effective.

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3 years ago
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