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Evolution, species and phylogeny

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Which statement describes evolution most precisely?

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Which diagram best represents descent with modification?

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What does Wallace's biogeographical evidence emphasise?

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Why is the biological species concept hard to apply to fossils?

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What is a phylogeny intended to show?

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Why compare multiple genes rather than one short sequence?

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Question 1 of 5

Explain resistance without directed mutation

A resistant allele increases after antibiotic exposure. Explain the change using variation, selection and reproduction, and state one claim the observation alone does not prove.

Keep origin of variation separate from change in frequency.

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