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Mammalia

Question 22 T...

Question

Question 22
Two chambered heart occurs in

(a) crocodiles
(b) fish
(c) aves
(d) amphibians

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Solution

(b) fish

Two chambered heart is a characteristic feature of Pisces. Crocodiles have a four-chambered heart. Aves and amphibians have a three-chambered heart.

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Question 22
Two chambered heart is found in

(a) crocodiles
(b) fish
(c) aves
(d) amphibians

Which one of the following sets of animals share a four chambered heart?

(a) Amphibian, Reptiles, Birds

(b) Crocodiles, Birds, Mammals

(c) Crocodiles, Lizards, Turtles

(d) Lizards, Mammals, Birds

Q. Question 11
Find out the false statement

(a) Aves are warm blooded, egg laying and have four chambered heart
(b) Aves have feather covered body, fore limbs are modified as wing and breathe through lungs.
(c) Most of the mammals are viviparous.
(d) Fishes, amphibians and reptiles are oviparous

Q. Assertion: Crocodiles have a four chambered heart.
Reason: Most reptiles have a three chambered heart.

Choose the correct answer.

Q. The heart of mammals and birds is four-chambered, while fishes have two-chambered hearts and amphibians and reptiles have three-chambered hearts. The hearts of birds and mammals are:

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