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True about incomplete double circulation :


( A ) the left atrium receives oxygenated blood from the gills/lungs/skin
( B ) the right atrium gets the deoxygenated blood from body parts other than gills/lungs/skin
( C ) all of the above
( D ) present in amphibians and reptiles

1 Answer

(C) is the right answer.

In amphibians and reptiles, the left atrium receives oxygenated blood from the gills/lungs/skin and the right atrium gets the deoxygenated blood from other body parts. However, they get mixed up in the single ventricle which pumps out mixed blood (incomplete double circulation).
answered Apr 3, 2014 by pady_1
 
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