Dichotomy Key

What is monster # 6 ?

• Alienus Stripicus

• Alienus Tritoothicus

• Alienus Hairicus

• Alienus Quadlegicus

What is the purpose of a dichotomous key?

• to find a common ancestor

• to show the evolution of organisms

• to show relationships between organisms

• to identify organisms

A dichotomous key for trees is provided. Hikers found a tree that has large brown cones and single sharp needles. What species of tree have the hikers found?

• Juniper

• Pine

• Spruce

• Fir

A student discovers an arachnid with a segmented abdomen, long legs, and a tail with no stinger. The student uses the dichotomous key below to identify it. Which arachnid has the student found?

• Whip Scorpion

• Wind Scorpion

• Daddy long legs

• Scorpion

A botanist discovers a new plant in the jungle. Which of the
following observations of the plant’s characteristics would be useful in determining its identity with a dichotomous key?

• It was discovered in the summertime

• It is wet from a recent rain storm.

• Its leaves curl up on the edges.

• It is eaten by native jungle ants.

What is monster ?

• Alienus quadlegicus

• Alienus haircus

• Alienus Tritoothicus

• Alienus Blobicus

What is monster # 4 ?

• Alienus Fuzzicus

• Alienus Stripicus

• Alienus Quadlegicus

• Alienus Blobicus

What is monster # 2 ?

• Alienus Fuzzicus

• Alienus Stripicus

• Alienus Tritoothicus

• Alienus Blobicus

What is a dichotomy key?

• A key that divides a set of items into two distinct groups based on a specific characteristic.

• A term used in computer programming.

Explain the concept of dichotomy keys with an example.

• Dichotomy keys are used to categorize words based on their length.

• Dichotomy keys can be created by separating words into two groups: those that start with a vowel and those that start with a consonant.