Understanding Variation

All organisms have traits that make them unique and distinguishable from one another.

Variation is a difference in traits between organisms.

Can affect whether or not an organism can survive in a particular environment

Traits help organisms survive and function

Bell curve

Shows that most of the data falls in an area around the top

This area at the top is what is considered “normal”

Review Questions!

In science, the difference in the physical features of an organism is called…

A. a trait

B. normal

C. a bell curve

D. variation

When graphing traits in a population of organisms, the versions of a trait near and at the top of a bell curve are considered to be

A. the least popular versions

B. normal

C. unique

D. mutations