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Multiple Choice
Which of the following is an example of genetic diversity within a rain forest?
A
The existence of multiple layers, such as canopy and understory, in the forest
B
The presence of both mammals and birds in the rain forest
C
Variation in rainfall across different parts of the forest
D
Different alleles for leaf shape within a single species of tree
Verified step by step guidance
1
Understand the concept of genetic diversity: Genetic diversity refers to the variation in the genetic makeup (alleles) within a population of a single species. It is a measure of the variety of genes present in a species' gene pool.
Analyze the options provided: The first three options describe ecological or environmental diversity (e.g., structural layers, species diversity, and environmental variation), which are not examples of genetic diversity.
Focus on the correct option: The presence of different alleles for leaf shape within a single species of tree is an example of genetic diversity because it highlights variation within the genetic material of a single species.
Relate this to the broader concept: Genetic diversity is crucial for the adaptability and survival of a species, as it allows populations to respond to environmental changes and resist diseases.
Conclude: The correct answer is the option that describes variation in alleles within a single species, as this directly pertains to genetic diversity.