WorksheetsDichotomous key
Total questions: 20
Worksheet time: 20mins
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 step do we always start with when using dichotomous keys?
a)
1
b)
2
c)
3
d)
4
3.
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
4.
Using this dichotomous key, identify the name of the circled Fish, J.
a)
peacock flounder
b)
band-tail puffer
c)
trumpet fish
d)
spotted goat fish
5.
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
6.
What is the purpose of a dichotomous key?
a)
to find a common ancestor
b)
to show the evolution of organisms
c)
to see what organisms eat
d)
to identify organisms
7.
What is a dichotomous key used for in science?
a)
To organize biomes
b)
Classify organisms
c)
Identify bacteria only
d)
None of these
8.
Tool used by a taxonomist to identify an unknown organism is a:
a)
dichotomous key
b)
binomial nmenclature
c)
scientific name
d)
binomial key
9.
What is monster # 1 ?
a)
Alienus quadlegicus
b)
Alienus haircus
c)
Alienus Tritoothicus
d)
Alienus Blobicus
10.
What is monster # 3 ?
a)
Alienus Fuzzicus
b)
Alienus Stripicus
c)
Alienus Tritoothicus
d)
Alienus Blobicus
11.
What is monster # 4 ?
a)
Alienus Fuzzicus
b)
Alienus Stripicus
c)
Alienus Quadlegicus
d)
Alienus Blobicus
12.
What is monster # 2 ?
a)
Alienus Fuzzicus
b)
Alienus Stripicus
c)
Alienus Tritoothicus
d)
Alienus Blobicus
13.
What is monster # 5 ?
a)
Alienus Fuzzicus
b)
Alienus Tritoothicus
c)
Alienus Hairicus
d)
Alienus Blobicus
14.
What is monster # 6 ?
a)
Alienus Stripicus
b)
Alienus Tritoothicus
c)
Alienus Hairicus
d)
Alienus Quadlegicus
15.
When using a dichotomous key to identify organisms, what do we look at?
a)
physical features
b)
weather patterns
c)
environment
d)
diet
16.
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
17.
Term given to describe the 2 name naming system is:
a)
dichotmous key
b)
binomial nomenclature
c)
2 scientific names
d)
binomial key
18.
What is the scientific name of housefly?
a)
Musca domestica
b)
Insect domestica
c)
Animalia domestica
d)
Diptera domestica
19.
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
20.
The 8 levels of classification, most broad to most specific.
a)
Domain, Genus, Family, Order, Class, Phylum, Kingdom, Species
b)
Domain, Species, Kingdom, Genus, Phylum, Family, Class, Order
c)
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
d)
Order, Kingdom, Species, Domain, Phylum, Family, Class, Genus
100 %
