A) Trygon, Whales, Seals
B) Seals, Dolphins, Sharks
C) Dolphins, Seals, Trygon
D) Whales, Dolphins Seals
Correct Answer: D
Solution :
[d] Sharks and Trygon (sting ray) are the members of chondrichthyes (cartilaginous fish) while whale, Dolphin and Seals are aquatic mammals |
Functional megaspore in an angiosperm belong to class mammalia. |
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