Dichotomous Key Practice

Front

What is a dichotomous key?

Back

A tool that allows the user to determine the identity of items in the natural world by answering a series of questions that lead to the correct identification.

Front

What is the primary purpose of a dichotomous key?

Back

To identify organisms.

Front

What type of organisms can be identified using a dichotomous key?

Back

Plants, animals, fungi, and other living organisms.

Front

What is the first step in using a dichotomous key?

Back

Start with the first question that typically divides the organisms into two groups.

Front

What does 'dichotomous' mean?

Back

Divided into two parts or groups.

Front

Why is it important to observe physical characteristics when using a dichotomous key?

Back

Physical characteristics help to accurately identify the organism by providing specific traits to compare.

Front

What is an example of a characteristic used in a dichotomous key for plants?

Back

Leaf shape, flower color, or growth habit.

Front

How does a dichotomous key differ from a phylogenetic tree?

Back

A dichotomous key is used for identification based on characteristics, while a phylogenetic tree shows evolutionary relationships.

Front

What should you do if you reach a question in a dichotomous key that does not apply to your specimen?

Back

Go back and check your previous answers to ensure they were correct.

Front

What is a common mistake when using a dichotomous key?

Back

Misinterpreting the characteristics or not observing the specimen closely enough.