Q14 of 38 Page 92

One of the following groups contains a non-mammalian animal. Pick up the group.

Crocodile is a non-mammalian animal. It is a large aquatic reptile. Mammals are characterized by presence of hair, are warm blooded and ability to nourish their young ones with milk. Dog, cat, lion and tiger are all mammals while crocodile is not.

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12

Mitral valve is found between _________.

 13

Assertion (A): Mammalian heart is called myogenic heart.

Reason (R): Heartbeat is regulated by a specialized muscle bundle (pacemaker) in mammals.


 15

The epidermis of mammals contains __________.

 16

Based on relationship, fill in:

Whale: Flippers:: Bat : _______