Question

how does a dichotomous key help identify unknown help you identify unknown specimens based on their traits?

Answer 1

My (correct) answer :

Dichotomous keys provide a way to compare the physical characteristics of species. It begins with basic features and then branches out into yes or no questions that give more detailed descriptions of the species. Therefore, a dichotomous key helps you identify the correct species easily with a few of yes or no questions.

edge check list:

• It has a series of questions.
• The questions use a simple yes/no format.
• It is based on observable traits.
• It allows you to focus on key features.
• Each question leads to another in a logical, ordered way.
• You always start at the same place.

Answer 2

A dichotomous key helps us classify organisms using their physical characteristics by dividing the organisms in to groups. For example, organisms with 6 legs, organisms with 8 legs and organisms with more than 8 legs are all grouped into different categories. These categories may further be divided into more categories; for example, the on the basis of the organisms' mode of respiration or on the basis of the organisms' body structures.
The groupings help in identification, separation and classification of organisms.