Define and Describe a Model

question 55

Essay

Define and describe a model.

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Definitions:

Land Dwellers

Organisms that live primarily or exclusively on land as opposed to aquatic or aerial environments.

Ancestors Of Amphibians

Early vertebrates from which modern amphibians are descended, likely evolving in the Devonian period.

Lobe-Finned Fish

Jawed fish with fins supported by internal bones; for example, a coelacanth or lungfish.

Homo Habilis

An extinct species of early human that lived approximately 2.1 to 1.5 million years ago, recognized for its use of stone tools.