Dichotomous Keys

Front

What is a dichotomous key?

Back

A tool used by taxonomists to identify unknown organisms by answering a series of questions based on physical characteristics.

Front

What is the first step when using a dichotomous key?

Back

Always start with step 1.

Front

What 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 organisms by providing a systematic method of classification.

Front

What is binomial nomenclature?

Back

A two-part naming system for organisms, consisting of the genus name and species name.

Front

What is an example of a dichotomous key?

Back

A key used to identify different species of insects based on their physical traits.

Front

What order do insects with two pairs of scaly wings belong to?

Back

Lepidoptera.

Front

What is the difference between a dichotomous key and binomial nomenclature?

Back

A dichotomous key is a tool for identification, while binomial nomenclature is a naming system.

Front

What type of questions are used in a dichotomous key?

Back

Yes/No questions based on observable characteristics.

Front

Why is it important to use a dichotomous key?

Back

It allows for accurate identification of organisms, which is essential in biology and ecology.