Which of the following is characteristic of fishes?

Question

Which of the following is characteristic of fishes? (A) Tail and venous heart (B) Venous heart and gills (C) Gills and tail (D) Scales and gills

Tardigrade Admin · Accepted Answer

Fishes respire through gills and the heart has S shaped chamber. It receives only venous blood, so it called venous heart. The characteristic feature of fishes is venous heart and gills.

Q. Which of the following is characteristic of fishes?

Tail and venous heart

Venous heart and gills

Gills and tail

Scales and gills

Fishes respire through gills and the heart has $S$ shaped chamber. It receives only venous blood, so it called venous heart. The characteristic feature of fishes is venous heart and gills.