A) from alimentary canal towards liver
B) from hind limbs to kidneys
C) from liver to kidney
D) from alimentary canal to liver
Correct Answer: B
Solution :
Along with normal circulation, vertebrates also contain portal systems in which the blood is taken towards organ other than heart. In frog, portal systems include Hepatic portal system, which carries blood from alimentary canal towards liver and Renal portal system, which carries blood from hind limbs to kidneys.
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