Animals that have no circulatory system,such as flatworms,rely on _______to deliver nutrients and gases to their tissues.
A) diffusion
B) osmosis
C) hemolymph
D) the lymphatic system
E) the coelom

Question

Animals that have no circulatory system,such as flatworms,rely on _______to deliver nutrients and gases to their tissues.  
A) diffusion
B) osmosis
C) hemolymph
D) the lymphatic system
E) the coelom

Quizplus · Accepted Answer

Animals with no circulatory system rely on diffusion to move nutrients and gases throughout their bodies. This process happens as substances move from areas of higher concentration to areas of lower concentration. Flatworms are an example of animals that use diffusion for transport.

Animals That Have No Circulatory System,such as Flatworms,rely on _______To