Post Utme Unn 2025 Biology Question 10

Practice objective / multiple choice question 10 from the 2025 Post Utme Unn Biology examination.

Post Utme Unn 2025 Biology Objective / Multiple Choice
Question 10 POST_UTME_UNN • 2025 • BIOLOGY • objective

A bio\logist is studying the evolution of a species over time. Which of the following mechanisms best explains the observed adaptation to a changing environment?

Answer Options

Correct Answer A. Natural selection acting on a pre-existing variation.
B. Genetic drift resulting from a small population size.
C. Mutation introducing a new allele for adaptation.
D. Gene flow from a neighboring population.
Correct Answer
A
Correct Option:
Natural selection acting on a pre-existing variation.

About This Question

This is Post Utme Unn 2025 Biology Question 10. It is one of the objective questions from the 2025 Post Utme Unn Biology examination.

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