Skeletons of modern cetaceans have remnants of a __________.
A) rib
B) head
C) flipper
D) pelvis
E) spine

Name: Skeletons of modern cetaceans have remnants of a __________. A) rib B) head C) flipper D) pelvis E) spine
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Question

Skeletons of modern cetaceans have remnants of a __________.  
A) rib
B) head
C) flipper
D) pelvis
E) spine

Quizplus · Accepted Answer

The pelvis is a vestigial structure in modern cetaceans, meaning it is a remnant of their evolutionary ancestors who had functioning pelvic bones. The pelvis in modern cetaceans serves no functional purpose and is only present as a leftover from their evolutionary past on land.

Skeletons of Modern Cetaceans Have Remnants of a __________