Write the features that distinguish between the two open and clos… - Vidyadip

Question

Write the features that distinguish between the two open and closed circulatory system.

✓

Answer

Open circulatory system	Closed circulatory system
(i) Blood pumped by the heart passes through large vessels into open spaces or body cavities called sinuses.	(i) Blood is pumped by the heart is always circulated through a closed network of blood vessels.
(ii) The respiratory pigment is absent in most of the cases.	(ii) The respiratory pigment is present in all cases.
(iii) Present in arthropods and mollusks.	(iii) Present in annelids, some mollusks, and all vertebrates.

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