Download 3.1 Classification

3.1 Classification
Biology Notes
Name: _____________________________________________________ Date: ___________________ Block: _____

How do scientists tackle the enormous variety of organisms in the world around us?
o
_________________________ = the discipline of __________________________, where biologists
classify organisms and assign them each a _________________________________________ name.

•
Aids in the study of the tremendous _______________________ among organisms!
How are organisms organized?
o
Through a __________________________ system, developed by Swedish botanist
_____________________________________.

Organizes organisms from the largest and most ______________________ category, the
____________________________, down to the most specific type of organism distinctions,
the __________________________.
o
From broadest to narrowest, these levels are:
Very general; contains many organisms
Pneumonic Device:
Dear King Phillip
Came Over For
Good Spaghetti
Very specific; contains one type of organism

Let’s take a closer look at the broadest grouping of them all!
Domain: Bacteria
Consists of
Domain: Archaea
Domain Eukarya
Classification of Living Things
Biology Notes
Domain
Kingdom
Cell Type
Cell
Structures
# of Cells
Mode of
Nutrition
Examples
Bacteria
Archaea
3.1 Classification
Eukarya
3.1 Classification
Biology Notes

How are organisms named?
o
Through a system known as ______________________________________________

Each organism has a_______________________________ name, describing its
___________________________ (the group of closely related ________________________
it belongs to) and _______________________________ (unique to each
_________________________ in the group.)
o
o
Examples:

Humans:

Lions:

Black bear:
Proper Way to Write Scientific Names

_________________________ name is always CAPITALIZED

_________________________ name is always lowercase

BOTH are ___________________________ (or italicized – since you can’t write in
italics, we will always underline!)
Explain which two are more closely related:
polar bear (Ursus maritimus)
panda bear (Ailuropoda melanoleuca)
grizzly bear (Ursus arctos)
3.1 Classification
Biology Notes
Classification / Taxonomy Practice:
1. These four different pine trees are classified
in the same _________________________________.
2. To which species does the frog pictured belong to?
3. Which of these is most closely related to the oak weevil?
4. Escherichia coli is the scientific name of a
bacterium. What category of classification is
Escherichia?
a. Order
b. Genus
c. Phylum
d. Species
5. Use the classification of three species of birds in Table 1 to answer the following questions.
Grouping
Carolina wren
House wren
Winter wren
Eukarya
Eukarya
Eukarya
Domain
Animalia
Animalia
Animalia
Kingdom
Chordata
Chordata
Chordata
Phylum
Aves
Aves
Aves
Class
Passeriformes
Passeriformes
Passeriformes
Order
Troglodytidae
Troglodytidae
Troglodytidae
Family
Thryothorus
Troglodytes
Troglodytes
Genus
ludovicianus
aedon
troglodytes
Species
a. Using the system of binomial nomenclature, what is the scientific name of the winter wren?
_______________________________________________
b. Which 2 birds are most closely related? _____________________________________________________