The Fact That Small, Nonfunctioning Hind Legs Are Found in the Skeletons

question 21

Multiple Choice

The fact that small, nonfunctioning hind legs are found in the skeletons of many snakes suggests that snakes

• A)are in the process of evolving legs.
• B)evolved from organisms with legs.
• C)are really populations of lizards with severe mutation in limb development.
• D)evolved from eels (snakelike fish).

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Definitions:

Hallucinations

Perceptions in the absence of external stimuli that have qualities of real perception, such as sights or sounds that are not actually present.

Stress

A physiological and psychological response to perceived challenges or threats, which can have both positive and negative effects on health.

Mood Disorders

A group of psychiatric conditions characterized by ongoing disruptions in emotional wellness, including conditions like depression and bipolar disorder.

Treatment Responses

The reactions or outcomes following medical or psychological intervention.