Dichotomous Keys (S7L1a)

Front

What is a dichotomous key?

Back

A dichotomous key is a tool that allows the identification of 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

The first step is to start with the first question in the key.

Front

What characteristic can distinguish arachnids from insects?

Back

The presence of antennae; insects have antennae while arachnids do not.

Front

Why is it important to observe specific characteristics of a plant when using a dichotomous key?

Back

Specific characteristics help narrow down the options and lead to the correct identification of the plant.

Front

What type of questions are best for a dichotomous key?

Back

Questions that are specific and can lead to a clear yes or no answer.

Front

What is an example of a strong question for classifying animals?

Back

Does the animal have fur?

Front

What is an example of a weak question for classifying animals?

Back

Does the animal live on planet Earth?

Front

How many legs do insects typically have?

Back

Insects typically have six legs.

Front

What is the significance of jointed legs in classification?

Back

Jointed legs are a characteristic of arthropods, which include insects and arachnids.

Front

What is the role of a botanist?

Back

A botanist studies plants, including their classification, characteristics, and ecology.