DENDROLOGY

Detailed explanation-1: -A dichotomous key is an important scientific tool, used to identify different organisms, based the organism’s observable traits. Dichotomous keys consist of a series of statements with two choices in each step that will lead users to the correct identification.

Detailed explanation-2: -Dichotomous keys are used to identify a variety of things including insects, plants, animals and rocks. A key gives pairs of “either-or” choices that direct the user to the next pair of choices (also known as a couplet) or to the point of identification.

Detailed explanation-3: -The dichotomous key is the method employed for identifying unknown organisms. The evolution of keys has been the result of work by taxonomists who study the characteristics of organisms at some taxonomic level (= category) and often develop keys for their identification.