Question 1 • PARTA - EOP: PGCPS BIOGEOCHEM CR (FALL2026) - 798113
Homologous structures share an underlying anatomical pattern inherited from a common ancestor, even if they serve different functions. The forelimbs of whales, humans, and dogs have related bone structures, so B is correct, and D describes the same pattern. Homology is evidence of common ancestry, making E correct. A bird’s wing and an insect’s wing have similar functions but different underlying structures, so they are not homologous.
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