| (i) Circulatory system in arthropods is of closed type. |
| (ii) Parapodia in annelids helps in swimming |
| (iii) Phylum mollusca is the second largest animal phylum. |
| (iv) Aschelminthes are dioecious. |
A) (i) only
B) (iii) only
C) (i) and (iii)
D) (iii) and (iv)
Correct Answer: A
Solution :
[a] Circulatory system in arthropods is of open type i.e., blood does not flow in definite vessels. Irregular spaces known as lacunae or sinuses, filled with blood are present.
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