Multiple Choice
An organism’s niche is determined by its habitat, which is its physical environment. Which of the following best describes the relationship between an organism’s niche and its habitat?
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1. Introduction to Biology
Natural Selection and Evolution
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Which of the following is NOT one of the 'five fingers of evolution' that can cause changes in allele frequencies within a population?
A
Genetic drift
B
Gene flow
C
Photosynthesis
D
Mutation
Verified step by step guidance1
Understand the concept of the 'five fingers of evolution,' which are mechanisms that can cause changes in allele frequencies within a population. These include genetic drift, gene flow, mutation, non-random mating, and natural selection.
Review the definitions of the listed mechanisms: Genetic drift refers to random changes in allele frequencies, especially in small populations. Gene flow involves the movement of alleles between populations. Mutation introduces new genetic variations. Non-random mating and natural selection also play roles in shaping allele frequencies.
Recognize that photosynthesis is a biological process by which plants, algae, and some bacteria convert light energy into chemical energy. It is not a mechanism that directly affects allele frequencies in a population.
Compare the options provided in the question. Genetic drift, gene flow, and mutation are all mechanisms of evolution, while photosynthesis is unrelated to changes in allele frequencies.
Conclude that photosynthesis is NOT one of the 'five fingers of evolution,' as it does not influence allele frequencies within a population.
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