Q10 of 63 Page 195

How are whales and electric rays different from each other?

Whale is a mammal, belonging to class Mammalia. The electric ray or torpedo is a fish belonging to class Pisces . Whale is warm blooded whereas the electric ray is cold blooded animal.


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(i) An arthropod that cannot fly.


(ii) A mollusk that possesses eyes.

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An animal phylum has lowest structural organization. Name and describe its features.