How Do Complex Adaptations Usually Evolve

question 19

Multiple Choice

How do complex adaptations usually evolve?

• A) By a single large step due to a highly adaptive mutation
• B) By many small steps, but only when each is an improvement over the last step
• C) By many small steps, but only when each has a minimal effect on fitness
• D) By single large steps, but only when natural selection is strong

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Definitions:

Na2Cr2O7

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A type of carboxylic acid that is often found in lipids, characterized by a long hydrocarbon chain which can be saturated or unsaturated.

Wax

A class of chemical compounds that are malleable at ambient temperatures and typically melt upon heating, often of natural or synthetic origin.

Stressor Defense

Strategies or mechanisms adopted by an individual or system to protect against stress or stress-induced conditions.