Class Polychaeta
Member of class Polychaeta has a
closed circulatory system
open circulatory system
four chambered heart
lack circulation
closed circulatory system
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In annelid, primary typical segment, usually bearing mouth, tentacles or cirri is called:A. peristomium
B. prostomium
C. nephridia
D. mouth
Common name for arenicola is:
A. round worm
B. tapeworm
C. lugworm
D. creeper
Tentacles are also known as:
A. sori
B. cirri
C. cilia
D. stomium
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