Dichotomous Key Quiz

What is the correct classification for the pictured organism?

• 
• Insecta

• Scorpiones

• Araneae

• Amblypygi

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.

1. a) Abdomen segmented.............go to 2

b) Abdomen not segmented ......go to 4

2. a) Abdomen with tail....................go to 3

b) Abdomen without tail...............go to 5

3. a) Tail with stinger..........................Scorpion

b) Tail without stinger.....................Whip scorpion

4. a) Legs longer than body.............Daddy Long Legs

b) Legs not longer than body……….Wind scorpion

5. a) Covered with spines .......................Mite

b) Few spines.....................................Tick

• Whip Scorpion

• Daddy Long Legs

• Mite

• Tick

You found a cone that was large with needles in groups of 2 or more, what did you find?

• Juniper

• Pine

• Spruce

• Fir

Which letter in the picture has two pairs of wings?

• M

• K

• F

• L

Which of the following is most helpful for identifying an organism using a dichotomous key?

• Where it lives

• Lifespan

• Its physical structures

• What it eats

Tags

NGSS.MS-LS4-2

Which leaf is shown in the drawing?

• Magnolia

• Redbud

• Sweetgum

• None of the above

What is bird W?

• Certhidea

• Geospiza

• Camarthyncus

• Platyspiza

Tags

NGSS.MS-LS4-2

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

From the table, which two animals are MOST CLOSELY related

• House Cate and Red Fox
• Red Fox and Dog
• Dog and Wolf
• Wolf and Gopher

Tags

NGSS.MS-LS4-2

What is the name of bird X?

• Certhidea

• Geospiza

• Camarhynchus

• Platyspiza

Tags

NGSS.MS-LS4-2