Question

How many chambers are present in the heart of (a) Fishes (b) Frog.

Answer 1

Chambers of Heart:

1. Vertebrate hearts can be classified based on the number of chambers present. Fishes have 2 chambers in their heart, amphibians and reptiles 3 chambers (exception of crocodile which has 4 chambers), Birds and mammals have 4 chambers.
2. The function of chambers of the heart is to prevent the mixing of blood rich in oxygen and carbon dioxide.

Final Answer:

(i) Fishes have a two chambered heart.
(ii) Frogs have a three chambered heart.