Which among these is the correct combination of aquatic mammals ?
Which among these is the correct combination of aquatic mammals ?
(1) Dolphins, Seals, Trygon
(2) Whales, Dolphins, Seals
(3) Trygon, Whales, Seals
(4) Seals, Dolphins, Sharks
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The correct answer is (2)
Sharks and Trygon (sting ray) are the members of cartilaginous fish while Whale, Dolphin and Seals are aquatic mammals belong to class mammalia.
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