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Nematoda Worksheet 2

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<strong>Nematoda</strong><br />

<strong>Worksheet</strong> 2<br />

Name ________________________________<br />

Date ____________________ Pd. _________<br />

Directions: Answer the following questions using your book and other sources.<br />

1. Classification (complete the diagram)<br />

Kingdom: ______________________<br />

Phylum: _______________________<br />

(Number of species = ________________)<br />

2. The common name for Phylum Nemotoda are the _______________________<br />

3. List in detail the characteristics of the <strong>Nematoda</strong> phylum.<br />

____________________________<br />

____________________________<br />

____________________________<br />

____________________________<br />

___________________________________<br />

___________________________________<br />

___________________________________<br />

___________________________________<br />

4. Most roundworms are free living on land, in freshwater and marine water. However,<br />

several are economically important because they are parasites in animals and plants.<br />

Complete the following table on roundworm parasites in man:<br />

Parasitic Roundworms in Man<br />

Common Name/ Scientific Name/ How is it contracted?<br />

Acaris<br />

________________________________________________________________________<br />

Hookworm<br />

________________________________________________________________________<br />

Trichinosis (disease)<br />

________________________________________________________________________


Filarial worm (Elephantiasis)<br />

________________________________________________________________________<br />

5. List the various functions of the pseudocoelom body cavity.<br />

________________________________________________________________________<br />

________________________________________________________________________<br />

________________________________________________________________________<br />

6. A. What are the two new anatomical features that were not present in the previous animal<br />

phyla? ___________________________ ___________________________<br />

B. Diagram and label the internal structure of the Ascaris both longitudinally and in<br />

crossection.<br />

C. Which sex is larger in Ascaris? _____________How large? ________________<br />

7. A. How large are male and female hookworms? M = __________ F = ___________<br />

B. How long before the larva hatch? _______________<br />

C. What is the secondary host for the hookworm? ___________________________<br />

8. What is a vinegar eel? ___________________________________________________<br />

________________________________________________________________________<br />

9. What is pinworm? ______________________________________________________<br />

________________________________________________________________________

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