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For the first time development of four-chambered heart is seen in

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in Biology by (48.6k points)

For the first time development of four-chambered heart is seen in 

(a) Tunicates 

(b) Urochordates 

(c) Reptilia 

(d) Man

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1 Answer

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by (50.3k points)

The answer is (c) Reptilia 

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