Download Annelid Webquest - Effingham County Schools

Name: __________________
Date: _______
Annelid Webquest and virtual lab
A. Use the following website:
http://www.encyclopedia.com/topic/Annelida.aspx
1. What is an Annelid?
2. Name the 3 classes of Annelids and an example of each. (Scroll down on
the page to help you!)
3. Which class includes parasitic species?
3. What kind of symmetry does an Annelid have?
4. What is the meaning of ‘closed circulatory system’?
Go to the website: http://goo.gl/xXK5N OR
http://www.mhhe.com/biosci/genbio/virtual_labs/BL_14/BL_14.html
Click on the “Lab Manual” and read about ‘External Anatomy’
Use the green arrow button on the right hand side to move to the next page
or the green arrow button on the left to move back to a previous page.
5. How do we tell the difference between the dorsal and ventral sides of the
earthworm?
6. What is found on the ventral half of each segment?
7. The ___________ is found on the ventral side of the first segment and the
___________ on the ventral side of the last body segment.
8. What is the function of the clitellum?
9. The _______________ _______________ openings are found on the ventral
surface of segment 15.
10. What happens during mating?
11. How are metabolic wastes removed from the body of the earthworm?
Click out of the lab manual. Drag and drop the matching labels with the
structures on the diagram. Check your answers. Fill in the labels below.
Click on the Lab manual and move to page 4 using the green arrow on the
right hand side.
12. When we dissect the earthworm in the lab, from where will we start cutting?
13. Name the parts of the digestive tract in order starting with the mouth cavity.
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14. What is the function of the gizzard?
15. What does the brain of an earthworm look like?
Go to page 8 using the green arrow on the right hand side.
16. Why is the earthworm considered to be a hermaphrodite?
17. What are the yellow-white ‘bladders’ above the esophagus called and what is
their function? (See the diagram)
18. What is the function of the seminal receptacles?
19. What is the function of the ovaries?
Click out of the lab manual. Click on ‘External Anatomy’ and drag and drop
the matching labels to the structures on the diagram. If you have trouble,
click on the Lab manual and go to page 4 to review the labels. Check your
answers and label the diagram below.
20. Provide labels for the diagram below: