What is the purpose of a dichotomous key? (Select all that apply.)
to find a common ancestor
to identify organisms
U to show the evolution of organisms
to show evolutionary relationships between organisms

Why is excretion necessary to maintain homeostasis?

What are tissues? a groups of tissues that work together b basic units of structure and function c groups of cells that perform the same function d multiple organs that perform a major function

The fish shown above is a tarpon. it is a fast-swimming and powerful open-water fish. its closest relatives, oddly, are burrow-dwelling conger eels that stay on the bottom. both eels and tarpon developed from snake-like larvae that float in the plankton during the first stages of life. once they mature, tarpon and eels are not found near one another in the ocean. the tarpon and the eel illustrate all of the following except