Transcript 4 th Period

Warm-Up #2
5/3/13
1) What does it mean to classify something?
2) Which is larger in the classification system:
Kingdom or Domain?
3) What is taxonomy?
4) What are four characterisitcs of living things?
5) What kingdom does Humans and Animals
belong?
TODAY
 We will complete the Classification Notes
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Today
After words you can work on the Unit 11
Vocab
OR organize your binder and discard the
folder
OR work on your homework for tonight
Vocab quiz moved to Tuesday, included on
the Quiz will be Notes #1
Semester Exam Exemption Policy
 For a “A” average– you can not have more
then 8 excused absences
 For a “B” average- you can not have more
then 4 excused absences
 If you have been suspended or received
ISS you will not be exempt
 If you have 1 or more unexcused
absences you WILL NOT be exempt
Students CURRENTLY Exempt
from the Biology Exam
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1st Period
Jack
Paola
Mitchell
3rd Period
Trevor
Jon Michael
Dustin
Larissa
Nerissa
Clent
Diamond
Donyell
Alex Terrell
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4th Period
Hannah
Nichole
Lindsey
Maddie McGuire
Abby
Wilson
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5th Period
Taijah
Austin
Logan
6th Period
Jordan
Shelbey
KaDacia
Sharon
Elisabeth
Emily
Classification and
Taxonomy
Chapter 18
What’s It All About?
 Essential Question:
 Why is classifying
living things useful?
 Objectives:
 Explain how living
things are classified
for study
 Describe bionmial
nomenclature
 Explain Linnaeus’s
system of
classification and the 3
domain system
 Classify objects using
a dichotomous key
Classification vs. Taxonomy
 Classification:
 Name organisms
 Group organisms in a
logical manner
 Taxonomy
 Discipline that gives
every organism a
universally accepted
name.
A World in Chaos!!!
 With all the scientist coming up with new
discoveries, someone had to come up with
a way to put them in a LOGICAL order
Who’s the Man
 Carolus Linnaeus
 Brought order to a
confusing situation
 Created a hierarchical (in
order) system of
classification
 7 levels
 Kingdom, phylum, class,
order, family, genus, species
 Each level is called a taxon
Linnaeus’s Hierarchy
KINGDOM Animalia
PHYLUM Chordata
CLASS Mammalia
ORDER Carnivora
FAMILY Ursidae
GENUS Ursus
SPECIES Ursus arctos
We Remember It…
 King
 Phillip
 Came
 Over
 For
 Grape
 Soda
How’d He Do It?
 Developed binomial nomenclature—
naming system
 Bi—two Nom—name
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Latin 2 part scientific name
Genus first, THEN species
Written in italics
Example: Homo sapiens
Domains and Kingdoms
 Linnaeus originally had 2 kingdoms—
Plantae and Animalia.
 Did not represent the full diversity of life
 Science and technology have made
scientists increase the number of
kingdoms from 2 to 6.
Three-Domain System
 Domains are based on molecular structure
between organisms.
 Domain—category larger than a kingdom
 Eukarya—Protists, Fungi, Plants, Animals
 Bacteria—Eubacteria
 Archaea--Archaebacteria
Domain Bacteria
 Unicellular
 Prokaryotic
 Thick, Rigid Cell Wall
 Petidoglycan
 Ecology Diverse—Free
living to deadly parasites
 Autotrophs and
Heterotrophs
 Need Oxygen—Die in
Oxygen
Domain Archaea
 Unicellular
 Prokarytoic
 Live in Extreme Environments
 Extremophiles
 Can survive only in absence of oxygen
 Lack Peptidoglycan
Domain Eukarya
 Consist of all organisms that have a
nucleus
 Protists—organisms that cannot be classified
in other kingdoms
 Fungi—Heterotrophs
 Plantae—Multicellular, photosynthetic
 Animalia—Multicellular, heterotrophs
Living
things
Bacteria
Eubacteria
Eukarya
Archaea
Protista
Fungi
Domains are in
orange.
Kingdoms are in
white.
Plantae
Animalia
Archaebacteria
Characteristics of Living Things
1.
2.
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4.
5.
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7.
8.
Made of cells
Reproduce
Based on universal genetic code
Grow and develop
Obtain materials and use energy
Respond to their environment
Maintain stable internal environment (Homeostasis)
As a group, they change over time (Adapt/Evolve)
How To Classify Things
 Dichotomous Key: Paired statements to
identify unknown objects or organisms
 Statements describe specific
characteristics of different organisms.
Warm-Up #1
5/2/13
1) What is a vertebrate?
2) What is an invertebrate?
3) Name two types of microscopic
organisms.
4) What characteristics do mammals have
that are different from other animals?