Question

4.a - lesson 1: natural selection self check
an adaptation is

○ a variation created during sexual reproduction

○ a trait

● a trait that helps an organism survive

○ a variation that is harmful to the organism

Explanation:

To determine the correct definition of an adaptation, we analyze each option:

• "A variation created during sexual reproduction" is incorrect because adaptations are not solely related to sexual reproduction; they can arise from other mechanisms and are about survival value, not just the origin of variation.
• "A trait" is too vague. Not all traits are adaptations; adaptations have a specific function related to survival.
• "A trait that helps an organism survive" is correct. By definition, an adaptation is a heritable trait that enhances an organism's ability to survive and reproduce in its environment.
• "A variation that is harmful to the organism" is incorrect because adaptations are beneficial, not harmful, to the organism's survival and reproduction.

Answer:

The correct option is: a trait that helps an organism survive