Answer;
im confuzzled but it might obviously be B. if im correct.
Explanation:
Answer:
Human, dog, cat, fish
Explanation:
Literally anything but a single celled amoeba
When Living beings are breathing,they get oxygen and put out carbon dioxide!
Answer:
the weather of our planet
Answer:
Alveoli are tiny, balloon-shaped air sacs. Their job is to move oxygen and carbon dioxide (CO2) molecules into and out of your bloodstream.
Explanation:
