Question

platypus or echidna is a group that forms a link between reptiles and mammals think and write about some characteristic features that this would have​

Answer 1

Answer:

The echdina and platypus are both egg laying mammals and monotremes.but now a new study state that they are both share a common ancestors. 2.they have mammary glands and nurse their young ones where as reptiles never do so sir which we can group them under mammals