Name Nawaporn Itsarasenaruk (Kae)
Date September 1, 2014
Class Grade 7
Content Vocabulary
LESSON 2
Classifying Organisms
Directions: Use the clues and the terms listed below to complete the puzzle. Then on each line, write the term
from the word bank that correctly completes each sentence.
binomial nomenclature
genus
1. A diagram called a
cladogram
kingdom
cladogram
dichotomous key
species
shows the relationships among
organisms.
2. The system of
binomial nomenclature
gives every organism a two-word scientific
name.
3.
kingdom
is the classification category above phylum and below
domain.
4. A
dichotomous key
5. A
species
produce fertile offspring.
6. A
genus
can be used to identify an unknown organism.
is a group of organisms that have similar traits and
is a group of similar species.
Name
Date
Class
Lesson Outline
LESSON 2
Classifying Organisms
A. Classifying Living Things
1. There have been many different ideas about how to
classify
living things.
2. Aristotle placed all organisms into two large groups—plants
and
animal
.
B. Determining Kingdoms
1. Carolus Linnaeus grouped all organisms into two main
groups called kingdom
.
2. In 1969 an American biologist proposed a five-kingdom system for classifying
organisms that included kingdoms Monera, Protista,
Plantae
,
Fungi, and Animalia.
C. Determining Domains
1. The current system used for classifying
systematics
systematics. Systematics uses all the
is called
evidence
that is known
about organisms to classify them.
2. Organisms are classified into one of three
—Bacteria,
domains
Archaea, and Eukarya—and then into one of six
kingdoms
.
D. Scientific Names
1. When Linnaeus grouped organisms into kingdoms, he also developed a system for
naming organisms. His system of
binomial nomenclature
gives each organism a
two-word scientific name, such as Ursus arctos for a brown bear.
2. A(n)
species
and produce fertile offspring.
is a group of organisms that have similar traits
3. In a scientific name, the first word is the organism’s
genus
,
such as Ursus.
4. The second word in a scientific name identifies the
organism’s appearance
5. Similar species are grouped into one
. Similar genera
are grouped into
genus
families
.
and then into orders, classes, phyla,
kingdoms, and domains.
6. Each species has its own
the world.
specific name
, which is the same all over
Name
Date
Lesson Outline continued
E. Classification Tools
1. A(n)
dichotomous key
is a series of descriptions arranged in pairs
that can be used to identify an unknown organism. The chosen description
leads to another pair of descriptions or to the identification of
the
organism
.
2. A(n)
cladogram
is a branched diagram that shows the
relationships among organisms. New characteristics appear before
each
branches
.
Class
Name
Date
Class
MiniLab
LESSON 2: 20 minutes
How would you name an unknown organism?
Assign scientific names to four unknown alien organisms from a newly discovered planet.
Procedure
1. Use the table to assign scientific names to identify each alien.
2. Compare your names with those of your classmates.
1. Diocularus rectanguliformus 2.trianguliformus monantenna 3.diocularus triangulusformus 4.
Monuris rectanguliformus
Prefix
Meaning
Suffix
Meaning
mon–
one
–antennius
antenna
di–
two
–ocularus
eye
rectanguli–
square
–formus
shape
trianguli–
triangle
–uris
tail
Analyze and Conclude
1. Explain why you chose the two-word names for each organism.
I chose two-word name for each organism, because the name will show the how the animal looks like.
And it will chow exactly how animal look like.
2. Compare your names to those of a classmate. Explain any differences.
Some of the animals name have the same as my classmate, but some of them just change the position of
the name.
3.
Key Concept Discuss how two-word scientific names help scientists identify and
organize living things.
The two-word scientific name help scientists organize the name the animal easily and clearly. So the
scientist can easily classify the groups of living things.