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Q.

Duck-billed platypus is connecting link between 

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a

Reptiles and mammals 

b

Birds and reptiles 

c

Birds and mammals 

d

Amphibians and mammals 

answer is C.

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Detailed Solution

Duck-billed platypus is a connecting link between reptiles and mammals. It shows mammalian characters like mammary glands, hair, diaphragm etc., and It shows reptilian characters in having a large coracoid in pectoral girdle and in laying eggs with yolk and shell.

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