Question

.Which of the following have an open circulatory system?

(i)Arthopoda (ii) Mollusca (iii)Annelida (iv)Coelenterata (1) i and ii (2) iii and iv (3) i and iii (4) ii and iv​

Answer 1

Answer:

only 1

arthropod

Arthropods, such as this bee and most mollusks, have open circulatory systems. In contrast to a closed system, arthropods (including insects, crustaceans, and most mollusks) have an open circulatory system.

Answer 2

Answer:

1) (i) and (ii)

Hope it helps.