CLASSIFICATION OF LIVING THINGS. ABOUT HOW MANY LIVING THINGS EXIST ON EARTH? – 1.5 MILLION KNOWN...
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Transcript of CLASSIFICATION OF LIVING THINGS. ABOUT HOW MANY LIVING THINGS EXIST ON EARTH? – 1.5 MILLION KNOWN...
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CLASSIFICATION OF LIVING THINGS
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CLASSIFICATION OF LIVING THINGS
• ABOUT HOW MANY LIVING THINGS EXIST ON EARTH?– 1.5 MILLION KNOWN ORGANISMS– THOUSANDS MORE IDENTIFIED EACH YEAR– ABOUT 10 MILLION DIFFERENT ORGANISMS
BELIEVED TO EXIST ON EARTH
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CLASSIFICATION OF LIVING THINGS
• WITH SO MANY DIFFERENT LIVING THINGS, IT IS ESSENTIAL FOR SCIENTISTS TO ORGANIZE THEM TO MAKE IT EASIER TO SHARE, AND STUDY, INFORMATION ABOUT LIVING THINGS
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CLASSIFICATION OF LIVING THINGS
• THE BRANCH OF BIOLOGY THAT DEALS WITH CLASSIFICATION (GROUPING) AND NAMING LIVING THINGS IS CALLED…
• TAXONOMY
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CLASSIFICATION OF LIVING THINGS
• WHY ORGANIZE??
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CLASSIFICATION OF LIVING THINGS
• EARLY CLASSIFICATION SYSTEM
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CLASSIFICATION OF LIVING THINGS
• MODERN CLASSIFICATION SYSTEM BASED UPON THE WORK OF CAROLUS LINNAEUS
• ISN’T HE A HOTTIE?!?!?
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CLASSIFICATION OF LIVING THINGS
• IF YOU WERE TO GROUP THINGS TOGETHER, WHAT WOULD YOU USE?
• LINNAEUS GROUPED THINGS BASED ON PHYSICAL(STRUCTURAL) SIMILARITY
• DIFFERENT LEVELS OF GROUPS WERE CREATED TO DEMONSTRATE VARIOUS LEVELS OF SIMILARITY
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CLASSIFICATION OF LIVING THINGS
• TAXONOMIC CATEGORIES– KINGSPLAYCHESSONFLATGLASSSQUARES
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CLASSIFICATION OF LIVING THINGS
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CLASSIFICATION OF LIVING THINGS
• A BONUS OF THIS CLASSIFICATION SYSTEM IS THAT IT LED TO A SIMPLE METHOD FOR NOMENCLATURE = “NAMING SYSTEM”
• BINOMIAL NOMENCLATURE
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CLASSIFICATION OF LIVING THINGS
• BINOMIAL NOMENCLATURE– TWO NAME NAMING SYSTEM– TWO NAMES COME FROM THE GENUS AND
SPECIES GROUPS OF CLASSIFICATION– SCIENTIFIC NAME• WHY IS THIS SO IMPORTANT??
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CLASSIFICATION OF LIVING THINGS
• WHAT MAKES LIVING THINGS THE SAME SPECIES?– SPECIES• A POPULATION OF ORGANISMS THAT IS ABLE TO
REPRODUCE WITH EACH OTHER AND PRODUCE FERTILE OFFSPRING
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CLASSIFICATION OF LIVING THINGS
• MODERN TAXONOMICAL PRINCIPLES– STRUCTURAL INFORMATION– BIOCHEMICAL
INFORMATION– CYTOLOGICAL
INFORMATION– EMBRYOLOGICAL
INFORMATION– BEHAVIORAL INFORMATION– FOSSIL INFORMATION
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CLASSIFICATION OF LIVING THINGS
• MAJOR TAXONOMICAL GROUPS
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CLASSIFICATION OF LIVING THINGS
• KINGDOM – MONERA– PROKARYOTES– ARCHAEBACTERIA
VS.EUBACTERIA
• KINGDOM – PROTISTA– EUKARYOTE– AMEBA – PARAMECIUM – EUGLENA
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CLASSIFICATION OF LIVING THINGS
• KINGDOM – FUNGI– EUKARYOTES– HETEROTROPH– CELL WALL
• KINGDOM – PLANTS– EUKARYOTES– AUTOTROPH– CELL WALL
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CLASSIFICATION OF LIVING THINGS
• KINGDOM – ANIMALS– EUKARYOTES– HETEROTROPH– REPRESENTATIVE
ORGANISMS• HYDRA• EARTHWORM• GRASSHOPPER• HUMAN
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CLASSIFICATION OF LIVING THINGS
• WITH GROUPS MADE, SCIENTISTS USE TAXONOMIC KEYS TO CLASSIFY ORGANISMS
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CLASSIFICATION OF LIVING THINGS
• CLASSIFICATION / GROUPING ALLOWS US TO ORGANIZE HOW WE STUDY BIOLOGY
• LIFE’SHIERARCHY
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CLASSIFICATION OF LIVING THINGS
• LIFE’S HIERARCHYGIVES US A PLACETO START DISCUSSINGTHE SPECIFICSOF HOW LIFE WORKS…SO LET’S GET TO IT!!!