What is a dichotomic key?

Dichotomic key is a key type for one access that offers only two options at a time. These keys are commonly used in biology to identify an unknown animal or plant. In order to use these keys, the user will determine which of these two different options is correct, and then monitors the key until the final option ultimately leads to the name of the organism. Although a dichotomic key can be created for any group of objects, they were first created for use in biology and are most commonly visible in this area.

For the first time used several hundred years ago, dichotomic keys are made specifically to identify various forms of life in the group. These keys work best when used to identify species that are closely related, but which have significant features or behavior that distinguish them from other species in the group, such as Pinches on the Galapagos Islands. Although it is possible to create a dichotomic key for a large group such as reptiles, a huge number of species in this SKUPINPRO This type of use is impractical.

In a well -organized dichotomic key, the first choice will divide the group into two groups, which have roughly the same number of types. The key shifts the group down to smaller and smaller groups until certain options begin to identify individual species. They can be arranged in a linear way that works well for small groups without many options or branches.

It is possible to adapt the dichotomic key to use outside biological science. By using this key type, any group of different objects that require classification such as stones or chemicals can be identified. The keys can also be created specifically for certain groups of things to eliminate foreign options that could not be found in a certain environment.

Problems with the use of a dichotomic key are that in some cases they do not know the elections will be true. The keys are foundedWomen on information that are correct for most type members or that are true but may not be observed in a single sample. For example, a choice that identifies the number of stains on a gek's tail as 5 or 7 can be impossible to answer if the gecko has lost the tail. In this case, the creation may be impossible to identify correctly or it may be necessary to monitor multiple fibers with a key, which can be confusing.