MIME-Version: 1.0 Content-Location: file:///C:/906BB24E/VirtualEarthwormDissection.htm Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="us-ascii" Virtual Earthworm Dissection

Virtual Earthworm Dissecti= on

Visit Site #1 http://biog-101-104.bio.cornell.edu/BioG101_104/tutorials/an= imals/earthworm.html

1) External dorsal surface - Draw a sketch of the worm.  Be sure to identify the anterior and posterior end.  Label the clitella.

 

 

 2)  Approximately how many segments does the worm have?

 

3) External ventral surface - Draw a sketch of the worm.  Label all reproductive parts.

 

  

4) Internal Morphology - Answer the following questions.

a)  How do you recognize the reproductive parts of the earthworm?

 

b) Describe the structure and location of the earthworm brain.

 

c)  When the digestive system is removed what can be observed?

  

Visit Site #2        &nbs= p;            &= nbsp;        http://w= wwbio200.nsm.buffalo.edu/labs/tutor/earthworm/

5)  Give the full classification of the earthworm.

 

6)  List (in order) the parts of the earthworm digestive system.

 

7)  Sketch a labeled diagram of the internal features of the earthw= orm.