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Q.

Two-chambered heart is a feature of

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a

Exocoetus

b

Calotes

c

Hyla

d

Psittacula

answer is D.

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Detailed Solution

Exocoetus (flying fish) has a two-chambered heart.

Both Hyla (tree frog), Calotes (garden lizard) have three-chambered heart.

Psittacula (parrot) has a four-chambered heart.

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