Category :
O/L
Subject :
Science
Year :
2021
Medium :
English medium
Question Number :
20
Time Passed :
2h
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(1)
always arteries contained oxyganated blood.
(2)
when circulated once through the body, blood goes twice through the lungs.
(3)
left ventricle act as the pump of systamic blood circulation.
(4)
always veins circulates blood away from the heart.
