AP Biologyeasymcq1 pt
Which trait pair is homologous?
A.Human arm and whale flipper
B.Bird wing and insect wing
C.Shark fin and dolphin flipper as whole structures
D.Eye of an octopus and eye of a human
Explanation
Core Concept
Both derive from the ancestral mammalian forelimb — same bones (humerus, radius, ulna), different jobs. Homology tracks shared ancestry.
Correct Answer
AHuman arm and whale flipper
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