Question

choose odd one out
Well developed Brain
Hair on body
Breathe out lungs
Lay eggs
​

Answer 1

Answer:

please mark me as brain list

Answer 2

Lay eggs is your answer..

the rest of the options are characteristics of mammals whereas "lay eggs" isnt..

(although there are exceptions to this case but as its name suggests it is an exception and is not counted as a characteristic for mammals..eg: platypus lays eggs but is considered as a mammal)

hope it helps!!