Mammals are different from birds in all these characteristics EXCEPT
A) hair.
B) mammary glands.
C) constant body temperature.
D) young born alive.
Correct Answer:
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Q16: The vertebrates that lack jaws are called
A)rays.
B)turtles.
C)lampreys.
D)eels.
Q17: If the only chordate characteristic that adult
Q18: During the course of fish evolution,two of
Q19: What is the main reason that mammals
Q20: Sharks
A)lack bony skeletons.
B)have dermal denticles.
C)have a keen
Q22: Generally the respiratory system in birds
A)is identical
Q23: Based on molecular data and skull features,what
Q24: Which of the following groups had made
Q25: All of the following statements concerning birds
Q26: Several lineages of reptiles evolved from a
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