Answer:
My best recommendation is C.
Explanation:
I won't explain it because you should be able to figure it out using the process of elimination, but try C.
Answer: Respiration in Animals.
Explanation:
This is a body systems which involves the intake of oxygen, and the release of carbon dioxide ,(breathing),for the breakdown of digested food substances for example (glucose), to generate energy.
Most organisms make s use of oxygen for survival they are aerobes, while some organisms thrived in absence of Oxygen; these are anaerobes.The
Answer:
your dumb if u don't know this
Explanation:
stupid
