classification of animals
TRANSCRIPT
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ClassificationClassification
Grouping & Identifying Grouping & Identifying Living ThingsLiving Things
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Why classify?Why classify?
Think of three examples where we Think of three examples where we group things.group things.
Why do we group these things?Why do we group these things?
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Classifying Living ThingsClassifying Living Things
We put livings things into two large We put livings things into two large groups:groups:
Animals Animals
PlantsPlants
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AnimalsAnimals
Animals are spilt into two major Animals are spilt into two major groups:groups:
VertebratesVertebrates
InvertebratesInvertebrates
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VertebratesVertebrates
These are animals with a backbone.These are animals with a backbone.There are five groups of vertebrates:There are five groups of vertebrates:
AmphibiansAmphibiansBirdsBirdsFishFishMammalsMammalsReptilesReptiles
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AmphibiansAmphibians
Have moist skinHave moist skin Lay jelly coated Lay jelly coated
eggs in watereggs in water Lives on land and Lives on land and
waterwater
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BirdsBirdsHave feathers and Have feathers and
hollow boneshollow bonesLay hard shelled Lay hard shelled
eggseggsWarm bloodedWarm blooded
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FishFish
Have wet Have wet scalesscales
Lays eggs in Lays eggs in waterwater
Lives in waterLives in water
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MammalsMammals
Have hair and Have hair and produce milkproduce milk
Give birth to live Give birth to live offspring (no eggs)offspring (no eggs)
Warm bloodedWarm blooded
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ReptilesReptiles
Have dry scalesHave dry scalesLay leathery Lay leathery
shelled eggsshelled eggsCold bloodedCold blooded
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Summary of VertebratesSummary of Vertebrates
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InvertebratesInvertebrates
These are animals without a backboneThese are animals without a backbone There are eight groups of invertebratesThere are eight groups of invertebrates
MolluscsMolluscs Flatworms Flatworms AnnelidsAnnelids RoundwormsRoundworms SpongesSponges EchinodermsEchinoderms CnidariansCnidarians ArthropodsArthropods
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MolluscsMolluscs
Crawl on a single Crawl on a single fleshy pad.fleshy pad.
Can have a shellCan have a shell
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FlatwormsFlatworms
Have flat worm Have flat worm like bodieslike bodies
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AnnelidsAnnelidsHave round worm Have round worm
like bodieslike bodiesHave bodies Have bodies
divided into divided into segments segments
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RoundwormsRoundwormsHave long thin Have long thin
round worm like round worm like bodiesbodies
Have bodies with Have bodies with no segmentsno segments
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SpongesSponges
Have bodies Have bodies made of loosely made of loosely joined cellsjoined cells
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EchinodermsEchinoderms
Have bodies divided Have bodies divided into five partsinto five parts
Have spiny outer Have spiny outer coveringcovering
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CnidariansCnidarians
Have thin sack Have thin sack like bodieslike bodies
Have tentaclesHave tentacles
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ArthropodsArthropods
Have lots of legs and segmented Have lots of legs and segmented bodies.bodies.
There are four group of arthropods:There are four group of arthropods:
ArachnidsArachnidsCentipedes & MillipedesCentipedes & MillipedesCrustaceansCrustaceansInsectsInsects
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Arthropods - ArachnidArthropods - ArachnidHave four pairs of Have four pairs of
legs.legs.Have bodies Have bodies
divided into two divided into two sectionssections
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Arthropods – Centipedes Arthropods – Centipedes & Millipedes& Millipedes
Have long thin Have long thin bodies and pairs of bodies and pairs of legs on each of legs on each of their many body their many body sectionssections
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Arthropods - CrustaceanArthropods - CrustaceanHave five-seven Have five-seven
pairs of legspairs of legsFirst pair often First pair often
used as pincersused as pincersBodies covered Bodies covered
in shellin shell
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Arthropods - InsectsArthropods - InsectsHave three pairs of Have three pairs of
legslegsBodies divided into Bodies divided into
three sectionsthree sectionsOften have wingsOften have wings