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At About Age 2, Which Words Begin to Take on Especially

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At about age 2, which words begin to take on especially important significance to toddlers?


Definitions:

Hardy-Weinberg Equilibrium

The principle stating that the genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors.

Phylogeny

Evolutionary history of a group of organisms.

Evolutionary History

A chronicle of the development and changes in populations or organisms over generations.

Three-Domain System

Classification system that places all organisms into one of three large domains—Bacteria, Archaea, and Eukarya.

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