Answer:
the last answer
Explanation:
over time by co-evolution of adaptations that reduce the harm or improve the benefit of the relationship
5: true
6: Oxygen
7: H+
8: true
Each enzyme is comprised of covalently linked amino acids...enzymes are proteins
The hypothalamus sends signals to the pituary glands. The hypothalamus releases dopamine, so I think dopamine is a good answer?
