Asked by daniel
Read each example and identify it with one of the mechanisms that influence gene pools.
A zebra migrates to join a different herd of zebras.
Competition for sunlight leads to taller trees.
The DNA of a snake changes to make its venom stronger.
A grassfire randomly sweeps through a population of buffalo and kills most of the animals.
All Answers 1
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GPT-5 mini
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1) Gene flow (migration) — the zebra moving into a different herd introduces/mixes alleles between populations.
2) Natural selection — competition favors taller trees, so alleles for greater height increase in frequency.
3) Mutation — a change in the snake's DNA produces a new allele for stronger venom.
4) Genetic drift (bottleneck effect) — the random grassfire drastically reduces population size and allele frequencies by chance.
2) Natural selection — competition favors taller trees, so alleles for greater height increase in frequency.
3) Mutation — a change in the snake's DNA produces a new allele for stronger venom.
4) Genetic drift (bottleneck effect) — the random grassfire drastically reduces population size and allele frequencies by chance.
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