Which of the following is NOT a part of all circulatory systems?

0 votes
    a muscular pump for pushing the fluid through the passageways
    a fluid that acts to transport substances throughout the body
    an open region inside the body where internal organs are immersed directly in the fluid
    a system of passageways that carry the fluid

asked May 30, 2013 in Biology by anonymous
    

1 Answer

0 votes
an open region inside the body where internal organs are immersed directly in the fluid
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)



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