[a] 0.5m27.From given groups of animals an open circulatory system is present in which of the following?a) Molluscab) Arthropod:ac) CoelenterataAnelida(i) a and b(ii) a and c(il) b and e66 and d320

[a] 0.5m27.From given groups of animals an open circulatory system is

1.	[a] 0.5m27.From given groups of animals an open circulatory system is present in which of the following?a) Molluscab) Arthropod:ac) CoelenterataAnelida(i) a and b(ii) a and c(il) b and e66 and d320
Answer» The answer is i) a and b. 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.