1.) Animals with backbones are ___________________ .
2.) An external membranous process of an aquatic animal (such as a fish) used for propelling or guiding the body is a(n)________________________ .
3.) A sac containing gas in fishes that assists in respiration and buoyancy is a(n) _________________ _______________.
4.) _______________ is the tendency of a body to float.
5.) The _______________ __________ 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) ___________________ .
7.) To ______________________ means to produce or deposit eggs.
8.) The male reproductive cells are ________________ .
9.) The female reproductive cells are ___________________ .
10.) The joining of sperm and egg cells resulting in a new individual is to _______________ .
11.) ________________ is an animal taken by a predator for food.
12.) ___________________ is plant life forms.
13.) A slender tactile process on the lips of fish is a(n)__________________ .
14.) ___________________ is of, situated in, or on the chest.