The answer to this problem is crayfish
Answer:
covalent bond
Explanation:
A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.
Hope that helps
I would say C.nervous system because that pretty much defines all of the answer choices.
The answer your looking for is here Anisogamete
