Are dichotomous keys used only to determine species? Explain.
The identification of the species of biological organisms using dichotomous keys is only one of their applications. Dichotomous keys create nodes in a flow chart from which there are only two divergent paths. They can be used choose a particular option given any list of items that have clearly defined characteristics.
For example, a dichotomous key could be used to choose among the following items present in a house: a chair, a bed, an oven, a computer, a telephone, a shower head, a flower pot, a mattress and a cushion. To identify the item a start can be made with the question: the item needs electricity to function. If the item needs electricity to function the choice has been narrowed down to 2 items. The next question could be: the item is used in the kitchen. This gives the item as an oven.