Does anyone know what a dichotomous key is?
The key is a way of walking you through an analysis. It is a series of questions that shuttles a curious person through all the possible physical characteristics until an item is identified. An example is with plants. The first question is likely to be. 1- Is the tree evergreen with needles or does it shed its broad leaves. Once you pick one class you see the next question. If you pick needles. 2- Are the needles in bunches or singly attached to twigs or are the needles flattened with overlapped scales. Pick bunches 3- are the needles 2-3/bundle or 5 in a bunch. Pick 5 4- This is a Pine tree.