Your answer would be A because none of the others make sense, Hope that helps!
Answer:
exchange carbon dioxide for oxygen,help with the movement of the blood cells that pump oxygen-rich blood to all cells in the body.
Explanation:
Answer:
The frequency of the sound.Hope this helps btw
Explanation:
You would need to know how fast the sound waves go through the air.
Answer:
Chemical made up from more than one type of element.
Answer:
D
Explanation:
Larger organism increases more in volume than area. That's why larger organism uses respiratory systems or organs and systems instead of simple diffusion for removal of waste and absorption of nutrients.
