WorksheetsDichotomy key
Total questions: 13
Worksheet time: 12mins
Name
Class
Date
1.
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
2.
What is the name of bird W?
a)
Certhidea
b)
Geospiza
c)
Camarhynchus
d)
Platyspiza
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.
Cells that have a true nucleus are called....
a)
eukaryotes
b)
prokaryotes
c)
unicellular
d)
multicellular
5.
A table of arachnid and insect characteristics is shown. Which characteristic could be used to distinguish between
arachnids and insects?
arachnids and insects?
a)
Jointed legs
b)
Body segments
c)
Presence of eyes
d)
Presence of antennae
6.
What step do we always start with when using dichotomous keys?
a)
1
b)
2
c)
3
d)
4
7.
A botanist discovers a new plant in the jungle. Which of the following observations of the plant’s characteristics would be useful in determining its identity with a dichotomous key?
a)
It was discovered in the summertime
b)
It is wet from a recent rain storm.
c)
Its leaves curl up on the edges.
d)
It is eaten by native jungle ants.
8.
How many kingdoms are there?
a)
2
b)
3
c)
6
d)
8
9.
What is written in italics or underlined.
a)
Scientific Name
b)
Common Name
10.
You would find mushrooms in what kingdom?
a)
Plantae
b)
Protists
c)
Fungi
d)
Animalia
11.
What is a dichotomous key used for in science?
a)
To organize biomes
b)
Classify organisms
c)
Identify bacteria only
d)
None of these
12.
Which of the following organisms are LEAST closely related?
a)
organisms that share a domain
b)
organisms that share a family
c)
organisms that share a genus
d)
organisms that share a species
13.
A group of related classes is called a(n)__________,
a)
phylum
b)
order
c)
family
d)
kingdom
100 %
