QQuestionBiology
QuestionBiology
"Which best describes evolutionary theory?
A. It is not supported by observation or experimentation.
B. It has been disproved several times since it was first proposed.
C. It is based on the idea that all life is related.
D. It states that organisms have become less complex over time."
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Answer
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Step 1: Identify the correct answer based on the definition of evolutionary theory.
Evolutionary theory is the scientific explanation for the diversity of life on Earth. It is based on the idea that all life is related and that organisms have changed over time due to natural selection, genetic drift, mutation, and other mechanisms. Therefore, the correct answer is: C. It is based on the idea that all life is related.
Step 2: Explain why the other options are incorrect.
A. It is not supported by observation or experimentation. This statement is incorrect because evolutionary theory is supported by a vast body of evidence from various fields, including genetics, paleontology, comparative anatomy, and biogeography. B. It has been disproved several times since it was first proposed. This statement is also incorrect because evolutionary theory has been consistently supported by evidence and has never been disproved. D. It states that organisms have become less complex over time. This statement is a common misconception about evolutionary theory. While some lineages have become simpler over time, others have become more complex, and the overall trend in the history of life is one of increasing complexity.
Final Answer
The correct answer is C. Evolutionary theory is based on the idea that all life is related.
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