Ask your own question, for FREE!
Biology 12 Online
OpenStudy (anonymous):

Annelids have a(an) ____ circulatory system, in which blood is contained in a network of blood vessels. A. open B. dorsal C. closed D. ventral

OpenStudy (anonymous):

I think its A or C

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
gr3ve3: Does anyone know how to solve/start this out?
16 hours ago 0 Replies 0 Medals
Addif9911: Him I dimmed the light that once felt mine, a glow I never meant to lose. I over-read the shadows, let voices crowd the room where only two hearts shouldu20
23 hours ago 4 Replies 0 Medals
EdwinJsHispanic: Poem to my mom who proved my point "You proved my point, I am a failure. but I kinda wish, you were my savior.
1 day ago 6 Replies 2 Medals
Twaylor: Templates for LaTeX
17 hours ago 27 Replies 2 Medals
Twaylor: Templates for LaTeX
1 day ago 25 Replies 0 Medals
Wolfwoods: The Modern Princess "you spoke so softly to me, held me close when no one else did, loved me in a way no one else dared to.
1 day ago 11 Replies 3 Medals
Wolfwoods: The Pain Of Waiting "The short story would be that we fell in love, you left and I continued to wait for you.
2 days ago 7 Replies 2 Medals
notmeta: balance the following equation - alumoinum chlorate --> alumninum chloride + oxyg
2 days ago 4 Replies 1 Medal
notmeta: If \(P(A) = 0.4\), \(P(B) = 0.7\), and \(P(A \cap B) = 0.2\), what is the value o
3 days ago 9 Replies 3 Medals
Wolfwoods: "Ich liebe dich u2013 aber wu00fcrdest du mich jemals zuru00fccklieben? Wu00fcrde
3 days ago 8 Replies 2 Medals
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!