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Natural selection leads to
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Natural selection leads to adaptive change in populations: over generations it increases the frequency of heritable traits (alleles) that confer higher reproductive success in a given environment.
Key consequences:
- Adaptation to local conditions (organisms become better suited to their environment)
- Change in allele frequencies in the gene pool (evolution)
- Possible diversification and, over long timescales, speciation
- Increased average fitness in the current environment (but not perfect organisms — trade‑offs and constraints remain)
Natural selection is not goal‑directed; its outcome depends on available genetic variation, environmental conditions, and interactions with other evolutionary forces (drift, mutation, gene flow).
Key consequences:
- Adaptation to local conditions (organisms become better suited to their environment)
- Change in allele frequencies in the gene pool (evolution)
- Possible diversification and, over long timescales, speciation
- Increased average fitness in the current environment (but not perfect organisms — trade‑offs and constraints remain)
Natural selection is not goal‑directed; its outcome depends on available genetic variation, environmental conditions, and interactions with other evolutionary forces (drift, mutation, gene flow).
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