BIO NMDCAT Darwinism

nmdcat.online July 14, 2026

What is the biological significance of “selective pressure” in the context of Darwinian evolution?

A. It refers to the physical force exerted by gravity on land organisms.

B. It is any environmental factor that reduces the reproductive success of a portion of a population.

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C. It is the metabolic stress experienced by an organism during cellular respiration.

D. It is the atmospheric pressure that limits the geographical range of bird species.

📝 Explanation

Selective pressure (e.g., predators, climate, disease) is the environmental force that drives natural selection by favoring certain phenotypes over others.

📖 Additional Information

It refers to the physical force exerted by gravity on land organisms.
It is any environmental factor that reduces the reproductive success of a portion of a population.
It is the metabolic stress experienced by an organism during cellular respiration.
It is the atmospheric pressure that limits the geographical range of bird species.

Selective pressure (e.g., predators, climate, disease) is the environmental force that drives natural selection by favoring certain phenotypes over others.

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