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.
Sometimes genes change their form in a process without a reason and it's called spontaneous mutation. Spontaneous mutations<span> occur with non-zero probability. And they occur even in an uncontaminated cell. They are characterized by the specific changes.</span>
Answer:
vultures, pretty much anything that is a decomposer like worms and stuff
Explanation:
Answer:
Cells are the basic structur of all living organisms
Explanation:
i was told
I believe it’s the Carboxyl group but confirm online. Hope this helped :))
