Dichotomous Keys

A dichotomous key is a tool that allows the user to determine the identity of items in the natural world, such as plants and animals, by answering a series of questions that lead to the correct identification.

Always start with step 1.

It helps us identify organisms.

It uses a series of yes/no questions to guide the user to the correct identification.

The purpose is to identify unknown organisms based on their characteristics.

Leaf shape, color, or size can be characteristics used.

A common ancestor refers to a species from which others have evolved, while a dichotomous key is a tool for identifying species.

Plants, animals, fungi, and other living organisms can be identified.

An exoskeleton is a hard outer structure that provides support and protection to some animals, like insects.

Examples include sweet gum trees, ladybugs, and various bird species.