2. Why classify?Why classify?
Think of three examples where weThink of three examples where we
group things.group things.
Why do we group these things?Why do we group these things?
3. Classifying Living ThingsClassifying Living Things
We put livings things into two largeWe put livings things into two large
groups:groups:
AnimalsAnimals
PlantsPlants
4. AnimalsAnimals
Animals are spilt into two majorAnimals are spilt into two major
groups:groups:
VertebratesVertebrates
InvertebratesInvertebrates
5. 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:
AmphibiansAmphibians
BirdsBirds
FishFish
MammalsMammals
ReptilesReptiles
6. AmphibiansAmphibians
Have moist skinHave moist skin
Lay jelly coatedLay jelly coated
eggs in watereggs in water
Lives on land andLives on land and
waterwater
7. BirdsBirds
Have feathers andHave feathers and
hollow boneshollow bones
Lay hard shelledLay hard shelled
eggseggs
Warm bloodedWarm blooded
9. MammalsMammals
Have hair andHave hair and
produce milkproduce milk
Give birth to liveGive birth to live
offspring (no eggs)offspring (no eggs)
Warm bloodedWarm blooded
12. InvertebratesInvertebrates
These are animals without a backboneThese are animals without a backbone
There are eight groups of invertebratesThere are eight groups of invertebrates
MolluscsMolluscs
FlatwormsFlatworms
AnnelidsAnnelids
RoundwormsRoundworms
SpongesSponges
EchinodermsEchinoderms
CnidariansCnidarians
ArthropodsArthropods
13. MolluscsMolluscs
Crawl on a singleCrawl on a single
fleshy pad.fleshy pad.
Can have a shellCan have a shell
20. ArthropodsArthropods
Have lots of legs and segmentedHave lots of legs and segmented
bodies.bodies.
There are four group of arthropods:There are four group of arthropods:
ArachnidsArachnids
Centipedes & MillipedesCentipedes & Millipedes
CrustaceansCrustaceans
InsectsInsects
21. Arthropods - ArachnidArthropods - Arachnid
Have four pairs ofHave four pairs of
legs.legs.
Have bodiesHave bodies
divided into twodivided into two
sectionssections
22. Arthropods – CentipedesArthropods – Centipedes
& Millipedes& Millipedes
Have long thinHave long thin
bodies and pairs ofbodies and pairs of
legs on each oflegs on each of
their many bodytheir many body
sectionssections
23. Arthropods - CrustaceanArthropods - Crustacean
Have five-sevenHave five-seven
pairs of legspairs of legs
First pair oftenFirst pair often
used as pincersused as pincers
Bodies coveredBodies covered
in shellin shell
24. Arthropods - InsectsArthropods - Insects
Have three pairs ofHave three pairs of
legslegs
Bodies divided intoBodies divided into
three sectionsthree sections
Often have wingsOften have wings