Dichotomous Key Flashcard

Front

What is a dichotomous key?

Back

A tool used to identify organisms by answering a series of questions that lead to the correct name of the organism.

Front

What is the first step in using a dichotomous key?

Back

Always start with step 1.

Front

What type of features do we examine when using a dichotomous key?

Back

Physical features of the organism.

Front

What is the purpose of a dichotomous key?

Back

To help identify unknown organisms based on their characteristics.

Front

What are chelipeds?

Back

The pincers or claws of crustaceans, such as crabs.

Front

How many pairs of walking legs do fiddler crabs have?

Back

Five pairs of walking legs on each side.

Front

What is a propodus?

Back

The enlarged part of a crab's claw that is used for grasping.

Front

What is the order of insects with two pairs of scaly wings?

Back

Lepidoptera.

Front

What is an example of a physical feature used in identification?

Back

Leaf shape, color, or texture.

Front

Why is it important to observe a plant's characteristics?

Back

To accurately identify it using a dichotomous key.