The circulatory system and respiratory system are protected by your skin, muscles, and ribs.
Answer:
Cellular respiration uses oxygen as a reactant and photosynthesis does not
Explanation:
Autotrophs use CO2 to make energy while heterotrophs use Oxygen.
<h3>Check all that apply?</h3>
You only gave one option so that's as far as I can get, sorry!
Answer:
D) Apes and chimpanzees are thought to have evolved from a common ancestor.
The answer to this question is B. Asp
