Answers

2016-03-10T18:39:12+05:30
ans a) Two mammals who lay egg are Platypus and Porcupine.
ans b) reptilia and mammalia 
ans c) Kangaroo gives birth to poorly developed young one.

i hope it helps............
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  • Brainly User
2016-03-12T19:38:42+05:30
*echidna,platypus
*reptilia,mamalia
*kangaroo gives birth to poorly developed young ones

pls mark this only as brainliest if it helps
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