A Species of Small Lizard Has Three Color Forms,pale Gray,brown,and

question 64

Multiple Choice

A species of small lizard has three color forms,pale gray,brown,and black.In its original range,the colors of the rocky environment were mixed from pale gray to very dark,and the population had an even mix of all three color forms.The blending of colors with their environment helps the lizards hide from predators.A group of these lizards ended up on an island with all gray rocks.Eventually,only gray lizards remained.This is an example of

• A) artificial selection.
• B) mutation.
• C) diversifying selection.
• D) directional selection.
• E) stabilizing selection.

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Definitions:

Immune System

The complex network of cells, tissues, and organs that work together to defend the body against infections, diseases, and other harmful invaders.

Endocrine System

A network of glands in the body that produce and release hormones directly into the blood to regulate the body's growth, metabolism, and sexual development and function.

Sympathetic Nervous System

A component of the autonomic nervous system that activates the body's fight or flight response in preparation for action.

B Lymphocytes

A type of white blood cell that plays a critical role in the immune system by producing antibodies to fight infections.