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Question
Which of the following organism do not give birth to young ones?
Options:
A .  Blue whale
B .  Lizard
C .  Human
D .  Rat
Answer: Option B
:
B
Blue whales, ratsand human beings are mammals. All mammalsgive birth to young ones, except platypus and echidna asthey are egg-laying mammals. Lizards, on the other hand, are oviparous i.e., they lay eggs andthey don't give birth to young ones.

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