Answer:
Because photosynthesis is a source of oxygen, it seems intuitive that photosynthesis evolved first: once enough O2 was in the air, then respiration would be able to arise in the newly oxygen-enriched atmosphere. However, some biologists have argued since the 1970's that respiration in fact evolved first.
Answer:
b
Explanation:
The R in RNA stands for Ribosomes which are proteins.
Answer:
if an animal lives in the desert and its moved to a cold place it can die cuz its not where it should be
Explanation:
it is true do y'all learn this I health or what?
Answer:
the troposphere directs the light towards us.
