Multiple Choice
What characteristics separate the Class Mammalia from other animals in the Phylum Chordata?
A) bipedal locomotion and an upright stance
B) heterotrophic and multicellular
C) a dorsal tubular nerve cord and notochord
D) vertebrates with hair and mammary glands
E) develop brain and tool use
Correct Answer:

Verified
Correct Answer:
Verified
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