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Question
Biology
Which of the following is common among mammals?
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Q. Which of the following is common among mammals?
AIIMS
AIIMS 2014
Animal Kingdom
A
They do not moult
18%
B
They have seven cervical vertebrae
51%
C
They are carnivores
10%
D
They have ventral nerve cord
21%
Solution:
All mammals are characterised by presence of seven cervical vertebrae mammary glands, hairs on body, presence of diaphragm, visceral gill clefts and dorsal nerve cord. All mammals are not carnivorous.