Multiple Choice
Which student made observations that contributed to the understanding of natural selection by studying a community of organisms in the Galápagos Islands?
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1. Introduction to Biology
Natural Selection and Evolution
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Which of the following best describes behavioral changes in individuals of a species that allow for better survival, but are not inherited by offspring according to the theory of natural selection?
A
Acquired traits
B
Genetic mutations
C
Adaptive radiation
D
Inherited traits
Verified step by step guidance1
Understand the key concept of the problem: Natural selection is a process where individuals with traits that provide a survival or reproductive advantage are more likely to pass those traits to their offspring. However, not all traits are inherited; some are acquired during an individual's lifetime.
Define 'acquired traits': These are changes or behaviors developed by an individual during its lifetime due to environmental influences, learning, or experience. These traits are not encoded in the individual's DNA and therefore cannot be passed to offspring.
Contrast acquired traits with inherited traits: Inherited traits are genetic characteristics passed from parents to offspring through DNA. These traits are subject to natural selection, unlike acquired traits.
Eliminate incorrect options: Genetic mutations refer to changes in DNA that can be inherited and contribute to evolution. Adaptive radiation describes the diversification of a species into different forms to adapt to various environments. Both are unrelated to behavioral changes that are not inherited.
Conclude that the correct answer is 'Acquired traits,' as these describe behavioral changes that improve survival but are not passed to offspring according to the theory of natural selection.
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