VCE Environmental Science Practice Questions - VCE Environmental Science Units 3 & 4 (VCAA) Exam

Why is genetic diversity within a wild population critical for the long-term survival of a threatened species?

It guarantees that every individual organism will develop complete immunity against all novel pathogens. It eliminates natural selection by ensuring all offspring possess identical physical traits. It provides a diverse gene pool that increases the probability of individuals possessing alleles advantageous for surviving environmental change or disease. It increases the rate of interspecific hybridization, creating new species within a single generation.

Correct Answer:

It provides a diverse gene pool that increases the probability of individuals possessing alleles advantageous for surviving environmental change or disease.

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