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CLASSIFICATION Of LIVING THINGS
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WHAT IS CLASSIFICATION?
SORTING LIVING THINGS INTO GROUPS BASED ON THEIR SIMILARITIES WHY?
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We classify because: Diversity creates a need to classify, so we…... Sort living things into categories to…... understand characteristics of living things.
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CLASSIFY LIVING THINGS ANIMALS PLANTS Leaves Fur No Fur All Lose year
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Taxonomy - the scientific study of how things are classified.
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ARISTOTLE Made the first system of classification
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Carolus Linnaeus made today’s classification system.
Binomial nomenclature: 2 part name based on shared characteristics. CANIS LUPUS
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lUPUS CANIS Genus is a classification grouping that contains
The first part of the organism’s scientific name is its genus & it is capitalized. Genus is a classification grouping that contains similar, closely related organisms. lUPUS CANIS
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The 2nd part is the Species and it is lower case
Recall, species are organisms that can mate and produce offspring CANIS lUPUS
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Why would you want to classify organisms ??
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TO MAKE THINGS EASIER!
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Taxonomic Key or dichotomous key
A series of paired statements that describe physical characteristics of organisms
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TWO DOMAINS: ARCHAE & EUKARYA
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Seven Levels of Classification:
Example of lion classification Domain Kingdom animals Animalia Phylum backbone Chordato Class mammal Mammalia Order carniovre Carnivora Family feline Felidae Genus panther Panthera Species lion Leo
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OR create ur own! How do u remember the 7 levels?
Use one of these mnemonics: Domain Do Do Kingdom Kings Kids Phylum Play Put Class Chess Catsup Order On On Family Flat Fried Genus Glass Garlic Species Surfaces Sandwiches OR create ur own!
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Living things grouped in 6 kingdoms:
Archaebacteria Kingdom Eubacteria Kingdom Protista
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Kingdom Fungi Kingdom Plantae Kingdom Animalia
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Archaebacteria Unicellular organisms that already existed billions of years before the dinosaurs. Scientist’s think they were the earliest form of life.
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Archaebacteria Live in extreme environments and can survive where no other organisms can. Unicellular Prokaryotes
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Eubacteria These bacteria are constantly on & around us.
Good (in yogurt) & bad (strep throat) bacteria Unicellular Prokaryotes
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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.
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3 shapes of bacteria Bacillius – rod shaped Coccus – spherical Sprillia - spiral
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PROTISTS Have u ever walked on the beach and seen tangled piles of seaweed? Protist kingdom is called the odds and ends kingdom Some r autotrophs, some r heterotrpohs - most r unicellular but a few like seaweed r multicellular
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FUNGI Mushrooms, molds and mildews Multicellular heterotrophs
eukaryotes Mushrooms, molds and mildews Exception: yeast is unicellular Most feed on dead & decaying organisms
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PLANTS: vascular & non-vascular gymnosperms angiosperms
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ANIMALS Multicellular Eukaryotes
Dog, flea cat cow, monkey, wasp, tarantula, human, fish, worm, etc.
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THINK ABOUT IT...
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What name do we give bacteria?
A. Eukaryote B. Prokaryote
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Why do scientists classify organisms?
A. For organization B. To determine where new organisms fit in C. A and B
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What is the genus and species name for man?
A. Homo Sapiens B. Homo Erectus C. Homozygote
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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
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Which kingdom consists of:
Molds? Seaweed? Yeast? Helpful bacteria? fungi protist fungi eubacteria
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