Answer the following statements true (T) or false (F)

1. In an open circulatory system, there is no difference between blood and interstitial fluid.
2. Relative to closed circulatory systems, Open Circulatory Systems pump hemolymph at relatively high pressure.
3. Blood is typically delivered to respiratory structures at low pressures in closed circulatory systems.
4. Frogs have two atria, but only a single ventricle.


1. TRUE
2. FALSE
3. TRUE
4. TRUE

Biology & Microbiology

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