Biology CLEP Prep Practice Exam

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Prepare for the Biology CLEP Test with comprehensive flashcards and multiple choice questions. Each question comes with explanations and hints to ensure a full understanding. Boost your exam readiness today!

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What is natural selection?

The process of adapting to a changing environment
The process of passing on favorable traits to offspring
The process by which organisms randomly change over time
The process by which some individuals in a population have higher reproductive success than others

The correct answer is: The process by which some individuals in a population have higher reproductive success than others

Natural selection is a key mechanism of evolution, in which individuals with favorable traits are more likely to survive and reproduce, passing on these traits to their offspring. This results in a gradual change in the entire population over time, leading to a better fit between individuals and their environment. Option A is incorrect because natural selection does not involve actively adapting to an environment; instead, it is a passive process in which individuals with beneficial traits are more likely to survive and reproduce. Option B is incorrect because the passing on of traits to offspring is a result of natural selection, not the definition of it. Option C is incorrect because natural selection is not a random process; it is driven by the selection of favorable traits.