1.) Animals with backbones are vertebrate .
2.) An external membranous process of an aquatic animal (such as a fish) used for propelling or guiding the body is a(n) fin .
3.) A sac containing gas in fishes that assists in respiration and buoyancy is a(n) air bladder .
4.) Buoyancy is the tendency of a body to float.
5.) The inner ear is the essential organ of hearing and equilibrium located in the temporal bone and innervated by the auditory nerve.
6.) One half of a sphere is a(n) hemisphere .
7.) To spawn means to produce or deposit eggs.
8.) The male reproductive cells are sperm .
9.) The female reproductive cells are eggs .
10.) The joining of sperm and egg cells resulting in a new individual is to fertilize .
11.) Prey is an animal taken by a predator for food.
12.) Vegetation is plant life forms.
13.) A slender tactile process on the lips of fish is a(n) barbel .
14.) Pectoral is of, situated in, or on the chest.