What part of the digestive system would you see in a cross section anterior to the gizzard?
1.What part of the digestive system would you see in a cross section anterior to the gizzard? 2.What structure in the earthworm has a similar function as the human heart? Explain your answer. 3.What do two earthworms exchange during mating? Explain your answer. 4.Describe the difference between a closed and an open circulatory system. 5.Do earthworms have a front and a back end? Explain your answer. 6.What characteristics distinguish an annelid from other worms?
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