Annelida: Earthworm
Purpose: The purpose of this lab is to introduce the student to the organ systems and body plan of an earthworm, a representative of the phylum Annelida.
Materials and Methods: This lab requires preserved earthworms, xs slides of the earthworm, dissection pins and trays, microscopes (compound and dissection), and lens paper.
Experiment: Examine the prepared earthworm slide cross-sections on low power. Also, examine a demonstration dissected earthworm. Note parts of digestive system in the dissected demonstration.
Conclusion: (Please use your text or the internet as a resource.)
The drawings shown below illustrate key features of the earthworm "systems." Based on these diagrams and your observations of the slides and preserved specimens, complete the table below.
|
 |
| circulatory system (hearts) | |
| nervous system | |
| excretory system | |
| skeletal system | |
| respiratory system | |
| reproductive system | |
| digestive system (list parts) | |
| sense organs | |
| body shape, plan | |
| locomotion |
Name two other types of segmented worms that belong to phylum Annelida.