Differentiate between Open circulatory system and Closed circulatory – InterviewSolution

1.

Differentiate between Open circulatory system and Closed circulatory system.

Answer»

Open circulatory system	Closed circulatory system
(i) Blood may flow in vessels but also remains in direct contact with tissues.	Blood flows in definite vessels known as arteries and veins.
(ii) Blood spaces or sinuses are present.	Blood spaces or sinuses are absent.
(iii) Haemocoel is present.	Haemocoel is absent.
(iv) Found in insects, e.g., cockroach, housefly, etc.	Found in annelids and higher vertebrates.

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