Dichotomous Keys WDES

Which leaf is shown in the drawing?

• Magnolia

• Redbud

• Sweetgum

• None of the above

Identify the plant shown

• A

• B

• C

• D

Identify leaf F

• Cydonia

• Magnolia

• Aesculus

• Fraxinus

• Ilex

Why do scientists use dichotomous keys?

• To arrange organisms based on habitat

• To determine evolutionary history

• To identify different organisms

• To analyse feeding habits

How many options should every branch in a dichotomous key have?

• 1

• 2

• 3

• 4

Identify Leaf S

• Eastern white pine

• balsam poplar

• sweet gum

• ginko

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

An illustration and a dichotomous key are given. What is the correct classification for this organism?

• Class Insecta
• Order Amblygygi
• Order Araneae
• Order Scorpiones

Using this dichotomous key, identify the name of the circled Fish, J.

• peacock flounder
• band-tail puffer
• trumpet fish
• spotted goat fish

Tags

NGSS.MS-LS4-2

Using this dichotomous key, identity the name of the circled fish.

• band-tail puffer
• spotted goat fish
• peacock flounder
• trumpet fish