Which among these is the correct combination of aquatic mammals?

  • Option 1)

    Seals, Dolphins, Sharks

  • Option 2)

    Dolphins, Seals, Trygon

  • Option 3)

    Whales, Dolphins, Seals

  • Option 4)

    Trygon, Whales, Seals    

 

Answers (1)

 

Class Mammalia -

Unique characteristic is presence of mammary glands. Two pairs of limbs and external ears or pinnae present.

-

 

Sharks and Trygon (sting ray) are the members of chondrichthyes (cartilaginous fish) while whale, Dolphin and Seals are aquatic mammals belong to class mammalia. 


Option 1)

Seals, Dolphins, Sharks

Option is incorrect

Option 2)

Dolphins, Seals, Trygon

Option is incorrect

Option 3)

Whales, Dolphins, Seals

Option is correct

Option 4)

Trygon, Whales, Seals    

Option is incorrect

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