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What do snake scales, dog fur, and eagle feathers all have in common?

kajumbi

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What do snake scales, dog fur, and eagle feathers all have in common?

What do snake scales, dog fur, and eagle feathers all have in common?
A) All grow for the life of the organism without being shed.
B) All are made of keratin.
C) All are related to fish scales (they share a most recent common ancestor that had fish scales).
D) They do not have anything in common other than they grow out of the skin.

Textbook

Biology: The Core

Biology: The Core

Edition: 2^nd

Author: Simon

Read 400 times

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