question_answer 65)

       Classify the following based on number of chambers in their heart rohu, scoliodon, frog, salamander, flying lizard, king, cobra, crocodile, ostrich, pigeon, bat, whale.

Answer:

  Pisces (fishes) have only two chambered hearts, e.g., Rohu, Scoliodon Amphibians have three chambered hearts except crocodiles, e.g., frog, salamander. Reptiles also have three chambered heart, e.g., flying lizard, king cobra. Crocodiles have four chambered heart (an exception is reptiles). Aves warm blooded animals having four chambered heart, e.g., ostrich, pigeon, bat, whale, etc.