According to my old biology book 2 terms include snow forest and Tagia
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.
The difference between them is that an ecosystem is a community of organisms and their environment. And a biosphere is all the living organisms.
Which Characteristic of life best describes the process of homostasis
1) nose 2) mouth
(Ignore this)
