Biology for IGCSE & O level - Variation And Selection (Section 7 - No. 31)
Which of the following best describes the relationship between 'variation', 'selection', and 'adaptation'?
Selection leads to variation, and variation leads to adaptation.
Variation leads to selection, and selection leads to adaptation.
Adaptation leads to variation, and variation leads to selection.
These three concepts are unrelated.
Explanation
Variation provides the raw material (different traits). Selection (environmental pressure) favors some of the variations and, over time, leads to adaptations.
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