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Q.

Select the correct statement regarding the vertebrate heart.

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a

Periplaneta has 13-chambered ventral heart

b

Rana has a three-chambered neurogenic heart

c

Scoliodon has a two-chambered systemic heart

d

Alligator has a four-chambered myogenic heart

answer is C.

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Detailed Solution

The heart of chordates (e.g., Scoliodon, Rana and Alligator) is myogenic while those of most non-chordates is neurogenic. Crocodilians (e.g., Alligator) have a four-chambered heart. The heart of fishes (e.g., Scoliodon) is a branchial heart (pumps blood only to the gills). The heart of Periplaneta is dorsal to the gut.

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