Diffusion across the alveoli
I agree that is a very great question i think the answer is knknjnknkbjk;
Answer:
If you destroy rainforests, there will be less oxygen in the air and more carbon dioxide. Trees and plants produce oxygen so that is why.
Explanation:
Number 5 is A plants. Fossils of ancient reptiles have been called Cynognathus and Mesosaurus have been found on South America and Africa.
Answer: B. Rough strained and heat killed smooth strain kills mouse
Explanation:
