Multiple choice

Open circulatory system is found in

  1. Man

  2. Insects/Cockroach

  3. Reptiles

  4. Ayes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The open circulatory system is common to molluscs and arthropods. Open circulatory systems (evolved in crustaceans, insects, mollusks and other invertebrates) pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood.

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