WorksheetsDichotomous Keys
Total questions: 14
Worksheet time: 22mins
Name
Class
Date
1.
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
2.
What step do we always start with when using dichotomous keys?
a)
1
b)
2
c)
3
d)
4
3.
When using a dichotomous key to identify organisms, what do we look at?
a)
physical features
b)
weather patterns
c)
environment
d)
diet
4.
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
5.
A dichotomous key for insects is given. To what order does an insect with two pairs of scaly wings belong?
a)
Coleoptera
b)
Heteroptera
c)
Diptera
d)
Lepidoptera
6.
How many options should every branch in a dichotomous key have?
a)
1
b)
2
c)
3
d)
4
7.
Term given to describe the 2 name naming system is:
a)
dichotmous key
b)
binomial nomenclature
c)
2 scientific names
d)
binomial key
8.
The first part of a scientific name is an organism's _______________ and the second part is its ________________.
a)
species, genus
b)
phylum, order
c)
class, spices
d)
genus, species
9.
What is the name of bird Z?
a)
Certhidea
b)
Geospiza
c)
Camarhynchus
d)
Platyspiza
10.
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
11.
The largest grouping of organisms is ____________________ and the smallest is _________________________________.
a)
Domain, species
b)
Domain, kingdom
c)
Species, domain
d)
Kingdom, species
12.
What should you do when typing a scientific name?
a)
Capitalize the first word
b)
Capitalize the first word and underline the whole thing
c)
Capitalize the first word and italicize the whole thing
d)
Nothing
13.
Identify leaf F
a)
Cydonia
b)
Magnolia
c)
Aesculus
d)
Fraxinus
e)
Ilex
14.
Which of the following features are used to classify a centipede (select all that apply)?
a)
Has wings
b)
Has no wings
c)
Has more than 8 legs
d)
Has a shell
100 %
