All mammals, without any exception, are characterised byA. Viviparity – InterviewSolution

1.	All mammals, without any exception, are characterised byA. Viviparity and biconcave red blood cellsB. Extra-abdominal testes and four chambered heartC. Heterdont teeth and 12 pairs of cranial nervesD. A muscular diaphragm and milk producing glands.
Answer» Correct Answer - D all mammals are characterised by a muscular diaphragm and milk producing glands, without and exception.

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