Answer:
Amino acids
Explanation:
Amino acids are the building blocks of proteins; they are composed of an R group(elements within this section of the amino acid can vary depending on the R group), an amino group, and a carbonyl group.
Amphibians is the only correct answer
Answer: B
Explanation:
That question lets you know how the pet is living on a daily basis. The other answer choices ask about medical history, but B asks about environment.
I believe the answer would be B.
Photosynthesis is this process