What is a scissor used for? Cutting.
scissors are used for cutting objects, or materials. scissors are not for heavy duty tools, but are usually used everyday for cutting fabric or paper.
Biology is used in, when is need of logic for any any type of bio-component or in any bio physical quantity.
Boitachnology
A dissecting pin is used when you need to hold a cut specimen in place. for example if you cut open a frog and need to keep the flaps in place - you put these pins through the frog's flaps and pin...