Cornell Notes
• Please get out a piece of notebook paper
and fold it for Cornell Notes.
Cornell Notes - Classification
Classification
• Putting things into orderly
groups based on similar
characteristics or traits.
Aristotle
• Over 2000 years ago this
Greek philosopher divided
living things into two groups –
animals and plants.
The animals were divided into those that fly, swim, or walk. Some sources say
that he put animals in two groups - red blood and not red blood.
Linnaeus
Taxonomy’s
Levels of
Classification
Anybody?
• 1758 - Swedish physician.
He gave every organism a two
word scientific name.
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DKPCOFGS
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
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How can you tell if
organisms are
closely related?
1. The more levels two
species share (in order)
the more closely related
they are.
2. If organisms are in the
same family, then they
are also in the same
order, class, phylum
and kingdom
K P C O F G S
Binomial
nomenclature
“two name naming system”
Genus + species =Sci. name.
Ex. Tyrannosaurus rex or T. rex
Greek = tyrant lizard and king
Always underline or put in italics.
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phylogeny
Modern taxonomy is based on
shared traits, DNA and
evolutionary history.
• Genus . . .
• This is the first part of
an organisms
Scientific Name. It is
always capitalized. It
is also a grouping of
organisms that are
very closely related.
• Species . . .
• This is the most
closely related and
smallest grouping of
organisms.
Cladogram
• a tree diagram used to
show evolutionary history
(phylogeny) and
relationships of species
• Go to page 223 and 238
Is the emu more closely related to the crane or
vulture?
Which bird can fly but does not perch?
Domain
All organisms are in one of
3 Domains.
Domain Archaea
Domain Bacteria
Domain Eukarya
Checkpoint Question #2!?!?!?!?
In a scientific name, the genus name is
similar to
A) Your species name.
B) Your family name.
C) Your nickname.
Checkpoint Question #3!?!?!?!?
What are the seven levels of classification
from the broadest to the most specific?
A) Kingdom, phylum, class, order, family,
genus, species
B) Kingdom, phylum, order, class, family,
genus, species
C) Kingdom, phylum, family, order, genus,
species
Checkpoint Question #4!?!?!?!?
Who developed one of the earliest
classification system for organisms?
A) Aristotle
B) Linnaeus
C) Darwin
Checkpoint Question #5!?!?!?!?
In the scientific name of a house cat, Felis
domesticus, “felis” is the name of the
animal’s
A) Species
B) Family
C) Genus
Checkpoint Question #6!?!?!?!?
A taxonomic key is
A) a book with illustrations that highlights
differences between similar-looking
organisms.
B) a process for determining the
evolutionary history of an organism.
C) a series of paired statements that
describe the physical characteristics of
different organisms.
Answers!!!
1-C
2-B
3-A
4-A
5-C
6-C
Glencoe key
Classify this . . .