Transcript Classification of Living Things

CLASSIFICATION
Of
LIVING THINGS
WHAT IS
CLASSIFICATION?
SORTING LIVING
THINGS INTO
GROUPS BASED
ON THEIR
SIMILARITIES
WHY?
We classify because:
•Diversity creates a need to
classify, so we…...
•Sort living things into
categories to…...
•Understand characteristics
of living things.
CLASSIFY
LIVING THINGS
ANIMALS
PLANTS
Leaves
All
year
Lose
Leaves
Fur
No Fur
Taxonomy - the scientific study
of how things are classified.
Carolus Linnaeus
developed
the system we use today.
All organisms are
given a two part
name based on
shared
characteristics.
CANIS LUPUS
The first part of the organism’s
scientific name is its genus.
Genus is a
classification grouping
that contains
similar, closely related
organisms.
CANIS LUPUS
The 2nd
part is the
Species
Recall, species are
organisms that can
mate and produce
offspring
CANIS
LUPUS
Why would you want to classify
organisms ??
Taxonomic Key
A series of paired statements
that describe physical
characteristics of different
organisms
Seven Levels of Classification:
Example of lion classification
Kingdom
Phylum
Class
Order
Family
Genus
Species
animals
backbone
mammal
carniovre
feline
panther
lion
Animalia
Chordato
Mammalia
Carnivora
Felidae
Panthera
Leo
Living things grouped in 6
kingdoms:
Kingdom
Archaebacteria
Kingdom
Eubacteria
Kingdom
Protista
Kingdom Fungi
Kingdom Plantae
Kingdom Animalia
Archaebacteria
Unicellular organisms
that already existed billions
of years before the dinosaurs.
Scientist’s think they were the
earliest form of life.
Archaebacteria
Live in extreme environments
and can survive where no
other organisms can.
Eubacteria
These bacteria
are constantly on &
around us. Eubacteria use
the sun’s energy to
produce oxygen,
helping keep the
Earth’s oxygen
at the proper level.
Reproduction of bacteria
Some bacteria go through
asexual reproduction, while
others go through a form of
sexual reproduction known as
conjugation.
Asexual Reproduction
Binary fission
the cell duplicates
its genetic material
and then divides
with each cell gets
exactly the same
thing.
Obtaining Food
Some bacteria are autotrophic
and make their own food the
same way plants do. Others are
heterotrophic which means they
consume a variety of foods from
milk to meat.
THINK ABOUT IT...
What name do we give
bacteria?
A. Eukaryote
B. Prokaryote
Why do scientists classify
organisms?
A. For organization
B. To determine where
new organisms fit in
C. A and B
What is the genus
and species name for
man?
A. Homo Sapiens
B. Homo Erectus
C. Homozygote
How do autotrophs and
heterotrophs differ?
A. One goes thru mitosis &
the other does not
B. One makes its own food
and the other does not