The given figures 1, 2, 3 and 4 are the examples of first true land ve – McqOptions

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1.	The given figures 1, 2, 3 and 4 are the examples of first true land vertebrates. They are dominant in mesozoic era and belong to phylum 'X'. Identify 'X' and the animals which have four chambered heart.
A.	X - Reptile; 2
B.	X - Reptile; 1
C.	X - Amphibia; 3
D.	X - Pisces; 4
Answer» B. X - Reptile; 1

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