A human arm and a whale flipper have the same bone structure but different functions. These are
Answer and explanation
Correct answer: B. homologous structures from a common ancestor
- Step 1: Similar bone structure in different functions points to descent from a common ancestor.
Answer
homologous structures from a common ancestor.
Why not the others: analogous structures from convergent evolution: analogous structures have different structures but similar function. vestigial structures that have lost their function: both limbs are fully functional. embryonic structures that disappear before birth: neither limb disappears before birth.
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