Biologists often dissect organisms in order to study them and compare organ systems to learn how they work. In the picture below is common equipment found in a dissection kit.

Image shows a dissection kit with the following equipment: Probe, scalpel, dissecting needle, dissecting scissors, forceps, dissecting pins and pipette.

Source: Dissecting Kit, Home Science Tools

To learn how this equipment is used visit the following site to see a "virtual" dissection of a frog.

Interactive exercise. Assistance may be required.Net Frog

Directions: Click on Begin Dissection. If you want narration, you may click on the "Play" arrow at each section. Going through the procedure will give the context in which each of the dissection tools are used.

Using the Image of button from interactive that reads: 'try it' icon, you can go through a simulation of the procedure.