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Assertion (A): A complex of blood vessels beginning and ending in capillaries through which blood circulates before returning to the heart is called a portal system. Reason (R): All mammals have a hepatic portal system. |
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Answer» Assertion (A): A complex of blood vessels beginning and ending in capillaries through which blood circulates before returning to the heart is called a portal system. Reason (R): All mammals have a hepatic portal system. |
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