Introduction to Animals

Multicellular heterotropic organism that lack cell walls.

Animals with a backbone

Animals that do not have a backbone.

Evolutionary adaptation of a cell for a particular function.

Animals get their energy from other sources.

Process when animals take in organic materials or food usually in the form of other living things.

Cells become specialized and perform different functions. (blood cells, bone cells)

Animals are able to move due to the interrelationship of 2 types of tissues. Which is not one of these tissues?

Body arrangement in which parts that lie on opposite sides of an axis are identical.