Snakes, Which Lack Limbs, Evolved from Vertebrates That Had Legs

question 122

Multiple Choice

Snakes, which lack limbs, evolved from vertebrates that had legs. This is an example of

• A) convergent evolution.
• B) an evolutionary reversal.
• C) a synapomorphy.
• D) a homology.
• E) None of the above

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Definitions:

Mental Rotation

The ability to mentally turn or rotate a three-dimensional object and understand how it would look from a different perspective.

Humanistic View

An approach in psychology emphasizing empathy and stressing the good in human behavior.

Human Nature

The general psychological characteristics, feelings, and behavioral traits of humankind, regarded as shared by all humans.

Deterministic

A philosophical theory that all events, including moral choices, are determined by previously existing causes.