WorksheetsDichotomous Key Practice
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
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?
a)
Juniper
b)
Pine
c)
Spruce
d)
Fir
2.
What is the name of bird X?
a)
Certhidea
b)
Geospiza
c)
Camarhynchus
d)
Platyspiza
3.
What is the purpose of a dichotomous key?
a)
to find a common ancestor
b)
to show the evolution of organisms
c)
to show relationships between organisms
d)
to identify organisms
4.
When using a dichotomous key to identify organisms, what do we look at?
a)
physical features
b)
weather patterns
c)
environment
d)
diet
5.
An illustration and a dichotomous key are given. What is the correct classification for this organism?
a)
Class Insecta
b)
Order Amblygygi
c)
Order Araneae
d)
Order Scorpiones
6.
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?
a)
Whip Scorpion
b)
Wind Scorpion
c)
Daddy long legs
d)
Scorpion
7.
What is the name of bird W?
a)
Certhidea
b)
Geospiza
c)
Camarhynchus
d)
Platyspiza
8.
Leaf S
a)
Eastern white pine
b)
balsam poplar
c)
sweet gum
d)
ginko
9.
Which characteristics are used to identify the American Robin?
a)
Head color, Beak shape, and Beak Color
b)
Head color and Beak Color
c)
Beak Shape and Beak Color
d)
Beak Color
10.
Using this dichotomous key, identity the name of the circled fish.
a)
band-tail puffer
b)
spotted goat fish
c)
peacock flounder
d)
trumpet fish
100 %
