A) X - Reptile; 2
B) X - Reptile; 1
C) X - Amphibia; 3
D) X - Pisces; 4
Correct Answer: A
Solution :
[a] The given figures (1, 2, 3 and 4) are respectively chameleons, crocodile, turtle and cobra. Reptiles are the first true land vertebrates and dominant in mesozoic era. They are cold blooded vertebrates. Heart in reptiles are usually three chambered but crocodiles is an exception having a four chambered heart.
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