What Must Exist Within a Population in Order for Evolution

question 28

Essay

What must exist within a population in order for evolution by natural selection to occur,and what are its sources?

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Definitions:

Viscera

The internal organs in the main cavities of the body, especially those within the abdominal cavity.

Taste Buds

Sensory organs located on the tongue and other parts of the mouth, which are responsible for detecting the five elements of taste perception: sweetness, sourness, saltiness, bitterness, and umami.

Pigments

Substances that impart color to other materials and are responsible for the colors seen in the natural world.

Color Vision

Ability of the eye to detect specific wavelengths of light; involves specialized cone cells that detect blue, green, and red wavelengths.