Biology I – Flatworms and Roundworms Computer Lab

 

http://bioweb.uwlax.edu/zoolab/Table_of_Contents/Lab-4a/Platyhelminthes/platyhelminthes.htm

1.  What is the phylum name for the flatworms? ____________________________________

2.  Briefly describe what a member of this phylum would look like. _______________________

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3.  What type of digestive system do flatworms have? ________________________________

4.  Name two functions of mucus in the class Turbellaria. _______________________________

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5.  How is gas exchange and excretion accomplished in flatworms? _______________________

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6. What are the function of ocelli? __________________________________________________

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7.    The class Trematoda contains animals referred to as what? ___________________________

8.  What is usually the intermediate host in the life cycle of a fluke? _______________________

9.  What kind of worms are in the class Cestoda? _________________________________

10.  What are the segments of tapeworms called? _______________________.  How do they attain

their nourishment? _________________________________________________________

11.  How many hosts are required for the tapeworm life cycle? ___________________________

12.  Name two ways the eggs are shed in a tapeworm life cycle? __________________________

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http://animaldiversity.ummz.umich.edu/site/accounts/information/Nematoda.html

13.  What is the common name for the class nematode? _______________________________

14.  How do round worms move? __________________________________________________

15.  Name the human parasitic round worms.  ________________________________________

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http://www.comeunity.com/adoption/health/parasites/parasites-NIH.html

Pinworms:

16.  Where is pinworm infection most prevalent? ______________________________________

17.  How do most exposure to eggs happen in children? (I know it’s gross!)  ________________

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Ascariasis:

18.  How big do these worms get and how many can infect an individual? __________________

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19.  Using words or phrase, and arrows, make a flow chart of the life cycle of Ascariasis:

 

 

 

 

20.  What is one of the first signs of infection with Ascariasis? ___________________________

Hookworms:

21.  What kind of unusual behavior do hookworms exhibit when trying to find a host? ________

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22. How do people usually become infected with hookworms? __________________________

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23.  What happens to the lava after entering the lungs? _________________________________

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Trichinosis:

25. Why is Trichinella spiralis known to be very versatile? ______________________________

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24.  Where do these larva end up?  _________________________________________________

26.  How do human contract trichinosis? _____________________________________________

 

http://www.allaboutworms.com/filarial-worms-in-humans

27.  How are humans infected with filarial worms? ____________________________________

28.  What are the 3 categories of filarial worms? ______________________________________

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http://www.healthorchid.com/Content/Consumer/Elephantiasis.htm

29. What are the main countries where this is common? ________________________________

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30.  What human system does it affect? ___________________________

31.   What transmits this parasite? _______________________________

32.  Name two problems associated with this condition.  ________________________________

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Now open the pdf file on my webpage and answer the questions about the pictures

(use this computer lab or any website):

 

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