|
Think About It!
|

|
Do It!
|
Analyzing Roundworm Infection
Chapter 22: Worms and Mollusks
Some human diseases are caused by roundworms. Scientists often study how humans become infected in order to prevent and/or treat the disease. Look at the table and analyze the information about roundworms and disease.
| Roundworm |
Human Organs Affected |
Source |
| Ascaris |
small intestine |
contaminated food or water |
| Filariae |
lymph vessels |
infected mosquitoes |
| Hookworm |
small intestine |
contaminated soil |
| Pinworm |
large intestine |
contaminated feces |
| Trichinella |
intestines, muscles |
raw or undercooked contaminated meat |
Analyze the Table
- How can you become infected with parasitic roundworms?
- What can you do to decrease the incidence of becoming infected with roundworms?
TOP
Think It! Do It! Home Page
Unit 6 Home Page

Copyright © 2008 by Pearson Education, Inc. publishing as Pearson Prentice Hall. All rights reserved.
Privacy Statement, Terms of Use, Permissions
|