Hydrogen bonds allow for cohesion and adhesion. Think water properties
Autonomic nervous system innervates the entirety of the gastrointestinal tract
Answer:
Peahens often choose males for the quality of their trains -- the quantity, size, and distribution of the colorful eyespots. Experiments show that offspring of males with more eyespots are bigger at birth and better at surviving in the wild than offspring of birds with fewer eyespots.
A because if you are going down deeper into the ocean, you are going farther away from the sun so it will become colder.