Match the following columns:Column-IColumn-II | vedclass

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(A) The circulatory pathways are classified based on the complexity of the heart and the flow of blood:$1$. Single circulation $(P)$: In fishes,the he

Vedclass · Accepted Answer

$(P-I), (Q-II), (R-III)$

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(A) The circulatory pathways are classified based on the complexity of the heart and the flow of blood:$1$. Single circulation $(P)$: In fishes,the heart pumps deoxygenated blood to the gills for oxygenation,which then passes directly to the body tissues. Thus,$P-I$.$2$. Incomplete double circulation $(Q)$: In amphibians and most reptiles,the left atrium receives oxygenated blood from the gills/lungs/skin and the right atrium receives deoxygenated blood from other body parts. They get mixed in the single ventricle. Thus,$Q-II$.$3$. Complete double circulation $(R)$: In crocodiles,birds,and mammals,oxygenated and deoxygenated blood received by the left and right atria respectively passes on to the ventricles and is pumped out without any mixing. Thus,$R-III$.Therefore,the correct matching is $(P-I), (Q-II), (R-III)$.

Column-$I$	Column-$II$
$P$. Single circulation	$I$. Fishes
$Q$. Incomplete double circulation	$II$. Amphibians and Reptiles
$R$. Complete double circulation	$III$. Crocodiles,Birds,and Mammals

Match the following columns:
Column-$I$ Column-$II$
$P$. Single circulation $I$. Fishes
$Q$. Incomplete double circulation $II$. Amphibians and Reptiles
$R$. Complete double circulation $III$. Crocodiles,Birds,and Mammals

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Match the following columns:Column-$I$Column-$II$$P$. Single circulation$I$. Fishes$Q$. Incomplete double circulation$II$. Amphibians and Reptiles$R$. Complete double circulation$III$. Crocodiles,Birds,and Mammals