Answer:
first blank is carbon i dk the secon
Explanation:
Answer:
I believe it should be C, D, A, B, E, it's a very debated over question about the order of events.
Answer:
A number is a correct answer
Answer: simple diffusion, the alveoli
Explanation: The oxygen enters the bloodstream from the alveoli, tiny sacs in the lungs where gas exchange takes place (Figure below). The transfer of oxygen into the blood is through simple diffusion.
