You Observe Two Groups of Birds That Appear to Be

question 115

Multiple Choice

You observe two groups of birds that appear to be closely related. Males from the first group have bright red stripes on their tail feathers that they display in a courtship dance preceding mating. Females only respond to coloring patterns exhibited by males of their species. This is an example of _____-zygotic reproductive isolation between two species.

• A)pre
• B)post

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Definitions:

Melanin

A pigment that gives human skin, hair, and eyes their color and offers protection against UV radiation.

Keratin

A type of structural protein that is a key component of the skin, hair, nails, and the outer layer of cells.

Protein

Large biological molecules, or macromolecules, consisting of one or more long chains of amino acid residues, functioning in various roles within organisms.

Melanin Production

The process by which cells known as melanocytes produce melanin, a pigment that colors the skin, hair, and eyes.