NEW
Font size
WorksheetsDichotomous key
Total questions: 17
Worksheet time: 10mins
In a dichotomous key, organisms should be classified based on their
diet
habitat
observable features
sounds they make
How many options should every branch in a dichotomous key have?
1
2
3
4
Why do scientists use dichotomous keys?
To arrange organisms based on habitat
To determine evolutionary history
To identify different organisms
To analyse feeding habits
Which of the following is a centipede?
Identify leaf F
Cydonia
Magnolia
Aesculus
Fraxinus
Ilex
What feature does this dichotomous key use to identify organisms?
Number of legs
Body colour and pattern
Presence of wings
Surface features
If you were to make a dichotomous key to identify this organism, which option would NOT be used?
Presence of webbed feet
Presence of tail
Fur on the body
Ability to swim
Absence of wings
Which of the following organisms is M. erminea?
A
B
C
D
E
Based on the dichotomous key, which bird is Certhidea? (Slender = thin; stout= round)
Bird W
Bird X
Bird Y
Bird Z
Identify the plant shown
A
B
C
D
A
B
C
D
What class of vertebrates does organism T belong to?
Amphibians
Birds
Fish
Mammals
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
