ClassificationClassificationGrouping & 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?
Classifying Living ThingsClassifying Living Things
We put livings things into two large We put livings things into two large groups:groups:
Animals Animals
PlantsPlants
AnimalsAnimals
Animals are spilt into two major Animals are spilt into two major groups:groups:
VertebratesVertebrates
InvertebratesInvertebrates
VertebratesVertebratesThese are animals with a backbone.These are animals with a backbone.There are five groups of vertebrates:There are five groups of vertebrates:
AmphibiansAmphibiansBirdsBirdsFishFishMammalsMammalsReptilesReptiles
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
BirdsBirdsHave feathers and Have feathers and
hollow boneshollow bonesLay hard shelled Lay hard shelled
eggseggsWarm bloodedWarm blooded
FishFish
Have wet Have wet scalesscales
Lays eggs in Lays eggs in waterwater
Lives in waterLives in water
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
ReptilesReptiles
Have dry scalesHave dry scalesLay leathery Lay leathery
shelled eggsshelled eggsCold bloodedCold blooded
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
MolluscsMolluscs Crawl on a single Crawl on a single
fleshy pad.fleshy pad. Can have a shellCan have a shell
AnnelidsAnnelidsHave round worm Have round worm
like bodieslike bodiesHave bodies Have bodies
divided into divided into segments segments
RoundwormsRoundwormsHave long thin Have long thin
round worm like round worm like bodiesbodies
Have bodies with Have bodies with no segmentsno segments
EchinodermsEchinoderms
Have bodies divided Have bodies divided into five partsinto five parts
Have spiny outer Have spiny outer coveringcovering
CnidariansCnidarians
Have thin sack Have thin sack like bodieslike bodies
Have tentaclesHave tentacles
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
Arthropods - ArachnidArthropods - ArachnidHave four pairs of Have four pairs of
legs.legs.Have bodies Have bodies
divided into two divided into two sectionssections
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
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