What do the fossil skeletons tell us about the evolution of today's whales? (Choose 4)

Responses
A Whales evolved from land-dwelling ancestors.Whales evolved from land-dwelling ancestors.
B Whale ancestors were mammals, but modern-day whales are not.Whale ancestors were mammals, but modern-day whales are not.
C The nostrils moved from the front to the top of head.The nostrils moved from the front to the top of head.
D As whales became aquatic, the hind limbs became vestigial.As whales became aquatic, the hind limbs became vestigial.
E The skull became elongated over time.The skull became elongated over time.
F To evolve into a marine animal, the bones became less dense.

1 answer

A, C, D, E
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