Q. What is true for mammalia
A. bats have feather
B. elephant is ovoviviparous
C. diaphragm is absent in them
D. Platypus is oviparous
Answer: Platypus is oviparous
A. bats have feather
B. elephant is ovoviviparous
C. diaphragm is absent in them
D. Platypus is oviparous
Answer: Platypus is oviparous