gas exchange is a primary example of simple diffusion,the exchange of *oxygen* and *carbon dioxide* fuels the cellular processes such as photosynthesis and cellular respiration
Answer: b. is the correct answer opposable
Explanation:
opposable: (of the thumb of a primate) capable of moving toward and touching the other digits on the same hand.
I believe the answer is the green house effect.
Hope I helped !!
Answer:
A.
Explanation:
A.
A complete protein is a food source that contains all the essential amino acids.