Taxonomy

Definition:

The study of classification. Developed by Carolus Linneas.

Dichotomous Key

Definition:

A guide used to identify living organisms.

Classification

Definition:

Grouping of organisms according to their similarities. (Evolutionary, genetic, physical, and environmental.)

Binomial Nomenclature

Definition:

The two word naming system. The scientific name using genus and species.

Vertabrate

Definition:

An animal with a backbone. (mammal, birds, reptiles, amphibians, fish)

Invertebrate

Definition:

An animal without a backbone (sponge, sea stars, jellies, worms, mollusks, arthropods).

Endotherm

Definition:

Internal blood temperature that stays constant (warm blooded mammals and birds).

Ectotherm

Definition:

Internal blood temperature changes with the environment temperature. (cold blooded)

Sessile

Definition:

An animal that cannot move. (Hydra, sponge, coral)