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BIOLOGY

JAMB 2012 - Question 10

Biology 2012 JAMB Past Questions - Question 10: Which of the following possesses mammary gland?

Choose the most appropriate option for the gap .

Which of the following possesses mammary gland?

A: Dogfish.

B: Whale.

C: Shark.

D: Catfish

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Correct Answer

Explanation

Blue whale is the largest mamma! that iives in marine water. Just like other mammals, it has mammary glands. Dog fish and shark are cartilaginous fishes because they have sharp teeth like scales which emerge from their skin and point backwards. They are marine fishes. They have internal fertilization. Male shark have claspers which help it in introducing sperms into the females. Cat fish is also a large fish found in fresh water.