Dichotomous Key Flashcard

Front

What is a dichotomous key?

Back

A dichotomous key is a tool that allows the identification of organisms through a series of choices that lead the user to the correct name of a given item.

Front

What is the purpose of a dichotomous key?

Back

The purpose of a dichotomous key is to help users identify unknown organisms based on their physical characteristics.

Front

What type of characteristics are used in a dichotomous key?

Back

Physical features such as leaf shape, flower color, and body structure are used in a dichotomous key.

Front

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

Back

Leaf shape, such as whether the leaves are broad or needle-like.

Front

What does it mean if a plant's leaves curl up on the edges?

Back

It may indicate a specific adaptation or condition of the plant, which can be a key characteristic in identifying it.

Front

What are the main components of a tree's identification in a dichotomous key?

Back

Components include the shape of leaves, type of cones, and arrangement of branches.

Front

What is a common feature of a spruce tree?

Back

Spruce trees typically have large brown cones and single sharp needles.

Front

What is the significance of physical features in identifying organisms?

Back

Physical features provide observable traits that can be compared to known characteristics in a dichotomous key.

Front

What is a fiddler crab known for?

Back

Fiddler crabs are known for having a pair of eyes on stalks at the top of their body.

Front

What is an arachnid?

Back

Arachnids are a class of joint-legged invertebrates that include spiders, scorpions, and crabs.