Which one of the following is an exclusive character of class mammalia – McqOptions

MCQOPTIONS

1.	Which one of the following is an exclusive character of class mammalia [BHU 2000; RPMT 2002]
A.	Presence of a completely 4-chambered heart
B.	Homoiothermy
C.	Presence of muscular diaphragm
D.	Internal fertilization
Answer» D. Internal fertilization

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