A Biologist Doing a Long- Term Study on a Wild

question 6

Multiple Choice

A biologist doing a long- term study on a wild spider population observes increased variation in silk thickness. She hypothesizes that the population is experiencing

• A) disruptive selection.
• B) genetic drift.
• C) stabilizing selection.
• D) directional selection.
• E) sexual selection.

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Definitions:

Vertices

The corners or points where two or more edges meet in a geometric shape.

Shifted

Refers to the transformation of a graph or equation that results in its movement to a different position on the coordinate plane, without altering its shape.

Coordinates

A set of values that show an exact position. On graphs, it usually refers to a pair of numbers that define a point in two-dimensional space.

Units

Standard quantities used to specify measurements.