Question

Identify the given animal and choose the correct option

• A. The skin is tough,containing minute placoid scales
• B. It has four pairs of gills which are covered by air bladder
• C. Fertilisation is external and is oviparous
• D. Mouth is located ventrally and jaws are very powerful
• E. All of the above.

Answer 1

The correct option is E All of the above.

The diagram given is of fish and all the options given are the characteristics of fish. The skin of fish is made up of placoid scales and some fishes have tough skin. Fishes have 4 -7 pair of gills and it vary from species to species. Bony fishes have air bladder which help them to control their buoyancy. Fertilization in most of the fishes is external and are oviparous. Most of the fishes have ventrally located mouth, also called as sub-terminal or inferior mouth.

Thus, the correct answer is 'All of the above.'