50 Assertion: The duck-billed Platypers and the spiny
ant-eater, booth are egg-laying animals yet they are
grouped under mammalo
Reasons Both of them have seven cervical vertebrae and 12
pairs of cranial nerves
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Answer:
they are connecting link between reptiles and mammals they share the properties of both phylum such platypus lay eggs like reptiles and hairy skin and mammelary glands like mammals...
Explanation:
may it's helpful..
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