Question

Which of the following is a characteristic feature of fish?

• A. The skin is covered with scales.
• B. They obtain oxygen dissolved in water through gills.
• C. Both A and B
• D. They obtain oxygen dissolved in water by using lungs.

Answer 1

Answer: (C)

Both A and B

The skin of fishes has scales/plates. They obtain oxygen dissolved in water

by using gills. Other characteristics of fishes are:

• The body is streamlined.
• They are cold-blooded.
• Their hearts have only two chambers.
• They lay eggs.

Thus, the correct answer is option C.