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Natural selection is best defined as occurring when the environment causes ______. - Biology (Theory)

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Question

Natural selection is best defined as occurring when the environment causes ______.

Options

  • differential mortality

  • assortative mating

  • a reduced gene pool

  • differential success in reproduction

MCQ
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Solution

Natural selection is best defined as occurring when the environment causes differential success in reproduction.

Explanation:

Natural selection is best defined as the process by which the environment causes differential success in reproduction among individuals with different heritable traits. Those individuals whose traits are better suited to the environment tend to leave more offspring, leading to changes in population traits over time. This differential reproductive success drives the evolutionary process.

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Chapter 8: Evidences and Theories of Biological Evolution - TEST YOUR PROGRESS [Page 342]

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Nootan Biology [English] Class 12 ISC
Chapter 8 Evidences and Theories of Biological Evolution
TEST YOUR PROGRESS | Q 1. 35. | Page 342
Nootan Biology [English] Class 12 ISC
Chapter 8 Evidences and Theories of Biological Evolution
TEST YOUR PROGRESS | Q 1. 86. | Page 344
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