Question

Which ones have open circulatory system?
$1$. Ascidia $2$. Cockroach $3$. Earthworm $4$. Prawn $5$. Silver Fish $6$. Snail $7$. Squid

• A. 2,4,6
• B. 1,2,4,6
• C. 3,4,5,7
• D. 2,4,5,6

Answer 1

Answer: (D)

Open circulatory system is found in cockroach, prawn, silver fish and snail