Trichinella and Enterobius (Nematoda-roundworms) What is the nature and importance of these organisms? Are they free-living or parasitic? If the latter, what are the hosts of each? Do they affect humans, if so what are the symptoms, how does one avoid infection, and what treatments are available to those who are

Trichinella and Enterobius (Nematoda-roundworms) What is the nature and importance of these organisms? Are they free-living or parasitic? If the latter, what are the hosts of each? Do they affect humans, if so what are the symptoms, how does one avoid infection, and what treatments are available to those who are

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter31: Animal Phylogeny, Acoelomates, And Protostomes

Section31.7: Ecdysozoan Protostomes

Problem 1SB

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You are investigating a new kind of flatworm and give it food attached to charcoal pieces so that the digestive system can be seen under a microscope. When you look, you can see what you think is a mouth but cannot see an anus. What kind of digestive system would this worm have? -a hematocoel system -a closed digestive system -none of these choices are correct -an incomplete digestive system -radially symmetrical
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