Excretory Products and their EliminationHard
Question
Which of the following is correctly matched?
Options
A.Human -Renal portal system
B.Erthworm -Closed circulatory system
C.Cockroch -Nephridia
D.None of the above
Solution
Earthworm has closed circulatory system. The blood circulated in definite walled blood vessels. Renal portal system is characteristic of reptiles. in reptiles renal portal system system brings blood from internal organs to the kidneys because their digestive tract and urinary tract only have cloaca to eliminate wastes. Humans have hepatic portal system that brings all the venous flow from digestive system into the liver. In cockroach the excretory organs are malpighian tubules not nephridia.
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