Chapter 18 Practice Quiz
Vocabulary: Use your notes to match the following terms with the correct definitions.
A.
B.
C.
D.
E.
F.
1. ____
2. ____
Phylogeny
Cladogram
Dichotomous Key
Systematics
Order
Kingdom
G. Scientific name
H. Derived character
I. Family
J. Genus
K. Species
L. Phylum
M. Class
N. Common name
O. Binomial nomenclature
P. Taxonomy
Q. Linnaeus
The branch of biology that names and groups organisms according to their
characteristics and evolutionary history.
Swedish naturalist devised a system of grouping organisms into hierarchical
categories, known as the father of our modern system of classification.
3. ____
Scientific discipline of assigning unique names to each species.
4. ____
A two-name system for writing scientific names.
5. ____
6. ____
A branch of biology that organizes the diversity of living things into the context of
evolution using phylogenetic trees.
The genus name is written first (always Capitalized). The species name is written
second (never capitalized).
7. ____
A feature that apparently evolved only within the group under consideration.
8. ____
The fourth categorical level of biological taxonomy, ranking just below class.
9. ____
A phylogenetic tree based on a cladistic analysis.
10. ____
A general name given to a living organism.
11. ____
Largest of the major classification levels, containing 6 groups
12. ____
13. ____
14. ____
A tool that consists of a series of paired statements that describe physical
characteristics of different organisms.
A group of organisms that can interbreed and produce fertile offspring. Smallest
classification level (taxon).
Part of classification levels that is also used as first part of a scientific name. Also
classification level above the species group
15. ____
The third largest categorical level of biological taxonomy, ranking just above order.
16. ____
The fifth categorical level of biological taxonomy, ranking just below order.
17. ____
The second largest categorical level of biological taxonomy, ranking below kingdom
and above class
LT 2:I can describe binomial nomenclature, and how to use/construct a dichotomous key.
 Select 3 of the organisms on the dichotomous key worksheet to identify. List the steps taken
in the dichotomous key to complete the identification.
Organism #
Steps (example: “1A, 2B, 3B, 4A=Cat Shark”)
 Select a bag of 5 leaves OR 5 pieces of hardware. Draw a branch diagram based on
observable characteristics. THEN, write a dichotomous key for these items.
Branch diagram:
Dichotomous key:
1A.
1B.
2A.
2B.
3A.
3B.
4A.
4B.
5A.
5B.
6A.
6B.
7A.
7B.
8A.
8B.
9A.
9B.
10A.
10B.
 The scientific name of a certain frog was printed in a magazine like this: RANA COLATUS. As
you can plainly see, it is incorrectly done. Rewrite the scientific name of that organism
correctly (assume that the spelling and sequence are correct). _____________________
 Name two advantages of using scientific names instead of common names.
a.
b.
 Two organisms are placed in the same species if they are able to ____________ and
produce ___________________.
 Based on their scientific names, what can you conclude about Amoeba proteus and
Amoeba hystolitica?
LT 3: I can explain how Linnaeus grouped species into larger units.
 List the order of classification from least similar to most similar:
LT 5: I can interpret a simple cladogram and construct a cladogram from data given.
 Below is a cladogram missing some of its parts. Use the derived characteristic chart
to the right of the cladogram and filled in clues to write in the missing parts of the
cladogram. Use this cladogram to answer the questions below.
Organism
Derived Character
Backbone
Legs
Hair
Earthworm
Absent
Absent
Absent
Trout
Present
Absent
Absent
Lizard
Present
Present
Absent
Human
Present
Present
Present
a. What trait separates the LEAST closely related organism from the other animals?
b. From this cladogram, we can conclude that ______________ shares the most recent
common ancestor with humans.
c. Based on the cladogram above, rank each species in order of distance from the LEAST
closely related organism.
LT 6: I can explain how DNA sequences are used in classification.
 Complete the attached activity “Cladograms and Genetics”.