Multiple Choice
Which of the following lists the three necessary conditions for natural selection to occur?
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1. Introduction to Biology
Natural Selection and Evolution
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Which of the following is an example of an adaptation in anole lizards?
A
Random mutation in a non-coding region of DNA
B
Increased food intake during the summer months
C
Variation in toe pad size that allows better grip on different surfaces
D
A temporary change in body temperature due to weather
Verified step by step guidance1
Understand the concept of adaptation: In biology, an adaptation is a heritable trait that increases an organism's ability to survive and reproduce in its environment. It is not a temporary change but a long-term evolutionary adjustment.
Analyze the options provided: Evaluate each option to determine whether it represents a heritable trait that improves survival or reproduction.
Option 1: 'Random mutation in a non-coding region of DNA' - Mutations in non-coding regions typically do not affect traits or survival directly, so this is not an adaptation.
Option 2: 'Increased food intake during the summer months' - This is a behavioral change and not a heritable trait, so it does not qualify as an adaptation.
Option 3: 'Variation in toe pad size that allows better grip on different surfaces' - This is a heritable trait that improves the lizard's ability to survive in different environments, making it an example of an adaptation.
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