Dichotomous Key Flashcard

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 characteristic distinguishes arachnids from insects?

Back

Presence of antennae.

Front

What is the first step in using a dichotomous key?

Back

Start with step 1.

Front

What type of tree has large brown cones and single sharp needles?

Back

Spruce.

Front

What is a key feature of butterflies that can help in identification?

Back

Wings have long extensions.

Front

How many pairs of walking legs do fiddler crabs have?

Back

Fiddler crabs have five pairs of walking legs on each side.

Front

What is the purpose of a dichotomous key?

Back

To help identify organisms based on their characteristics.

Front

What is a characteristic of insects?

Back

Insects have antennae, while arachnids do not.

Front

What is the significance of the presence of eyes in identifying organisms?

Back

The presence of eyes can help differentiate between various species.

Front

What does the term 'chelipeds' refer to?

Back

Chelipeds are the pincers or claws of crustaceans, such as crabs.