2006-09-02 20:38:39 · 5 answers · asked by louise c 1 in Science & Mathematics ➔ Biology
an open cirulatory system means there is no heart but small muscular contractions and no blood. they contain intestial fluid through out the body and just exchange there differnt nutrients and wastes thourgh that. So the dissavantages are:
- Much less movement of substances and wastes
- Less efficient circulation
The advantages are:
- Much faster transfer expulsion of wastes (Such as Nitrogenous wastes (Urea, Uric Acid) and Co2)
-Faster Movement of oxygen to required areas
-Faster Horemone action due to increased blood flow rate.
2006-09-02 22:33:13 · answer #1 · answered by let_go345 1 · 0⤊ 0⤋
i dont know if this is obvious but closed systems are more efficient because there is a feed back in the system from an output point to an input point which makes it possible to monitor the output and modify it according to the desired value.
2006-09-02 20:42:38 · answer #2 · answered by 007 1 · 0⤊ 0⤋
well if it's open, then just about anything can get in and out. And that's not a good thing if you're dealing with a circulatory system.
2006-09-02 20:46:12 · answer #3 · answered by Steven B 6 · 0⤊ 0⤋
...why apart from the obvious? The obvious is reason enough!
2006-09-02 20:40:45 · answer #4 · answered by Anonymous · 0⤊ 0⤋
No leaks?
2006-09-02 20:42:47 · answer #5 · answered by Aldo the Apache 6 · 1⤊ 0⤋