Several Related Bird Species Live in a Desert

question 52

Multiple Choice

Several related bird species live in a desert. One species is much smaller than the other species. This species nests in holes in cacti. Because the bird is so small, it can easily squeeze between the spines of the cactus and create a well-protected nest. This is an example of

• A)genetic drift.
• B)mutation.
• C)natural selection.
• D)gene flow.

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Definitions:

Widely Used Drug

A substance that is commonly consumed or applied for its physiological and psychological effects.

Physical Dependence

A physiological state of adaptation to a substance, manifested by the development of withdrawal symptoms when the substance is reduced or stopped.

Caffeine

A stimulant of the central nervous system present in coffee, tea, and various foods and drinks, known to enhance alertness and reduce fatigue.

Headache

A pain or discomfort in the head, scalp, or neck, often associated with tension, migraine, or sinus issues.