Annelids have a(an) ?????????????? circulatory system, in which blood is contained in a network of blood vessels.

Question

anonymous · Answer

what is the type of circulation when the blood is in the vessels??

anonymous · Answer

hint:  we humans have the same thing..

anonymous · Answer

lol idk (/./)

anonymous · Answer

what you squish a bug, how is its blood?
when you chop a chick, how do you see the blood?

anonymous · Answer

is this your bio final?

anonymous · Answer

no prep questions

anonymous · Answer

it is called "closed" circulatory system

anonymous · Answer

bugs, like wingspanroach, ants, etc have "open" circulatory system.

anonymous · Answer

in open circulation, the blood is presevent everywhere.. no free space.. since the body size is so small 
in closed, the body size can now grow very large because blood is transported exctly to where it is required

anonymous · Answer

and hence, closed system is so efficient

anonymous · Answer

ohhh ii see