Vertebrates and invertebrates

Classification of Classification of AnimalsAnimals

11EVS-Class V EVS-Class V

Classification of AnimalsClassification of Animals

Classifying Living ThingsClassifying Living Things

We put livings things into two large We put livings things into two large groups:groups:

Animals Animals

PlantsPlants



AnimalsAnimalsAnimals are spilt into two major Animals are spilt into two major

groups:groups:Vertebrates-Vertebrates-

have a backbone have a backbone

Invertebrates:Invertebrates:Do not have a backboneDo not have a backbone



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:

FishFishAmphibiansAmphibiansReptilesReptilesBirdsBirdsMammalsMammals



FishFish Are cold-blooded.Are cold-blooded. Live in water Live in water Lay eggs (but some Lay eggs (but some

do give birth to live do give birth to live young).young).

Have a moist skin Have a moist skin covered in scales.covered in scales.

Breathe through Breathe through gills.gills.



AmphibiansAmphibians Are cold-blooded.Are cold-blooded. Lay eggs.Lay eggs. Have a smooth, moist Have a smooth, moist

skin.skin. Are able to live on Are able to live on

land as well as in the land as well as in the water.water.



ReptilesReptilesAre cold-blooded.Are cold-blooded.Lay eggs.Lay eggs.Have a dry skin Have a dry skin

covered with covered with scalesscales..



BirdsBirdsHave feathers and Have feathers and

hollow boneshollow bonesLay hard shelled Lay hard shelled

eggseggsWarm bloodedWarm blooded



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



Check your understandingCheck your understandingTo which class of vertebrates do the To which class of vertebrates do the

given animals belong?given animals belong?A B

C D



EF

G H



InvertebratesInvertebrates These are animals without a backboneThese are animals without a backbone They breathe through their skin and They breathe through their skin and

reproduce by laying eggs. reproduce by laying eggs. There are three broad groups of There are three broad groups of

invertebratesinvertebratesWormsWormsMolluscsMolluscsArthropodsArthropods



WormsWorms

Have round or flat bodiesHave round or flat bodiesGenerally have bodies divided into Generally have bodies divided into

segments segments Breathe through their skinBreathe through their skin



MolluscsMolluscs

Crawl on a single Crawl on a single fleshy pad.fleshy pad.

Breathe through Breathe through their skintheir skin

Can have a shellCan have a shell



ArthropodsArthropodsHave 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:

SpidersSpidersCentipedes & MillipedesCentipedes & MillipedesCrustaceansCrustaceansInsectsInsects



SpidersSpidersHave four pairs of Have four pairs of

legs.legs.Have bodies Have bodies

divided into two divided into two sectionssections



Centipedes & MillipedesCentipedes & 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



CrustaceanCrustaceanHave five-seven Have five-seven

pairs of legspairs of legsBodies covered Bodies covered

in shellin shell



InsectsInsectsHave three pairs of Have three pairs of

legslegsBodies divided into Bodies divided into

three sectionsthree sectionsOften have wingsOften have wings



Invertebrates

Worms Molluscs Arthropods



Check your understandingCheck your understandingClassify the animals as vertebrates Classify the animals as vertebrates

and invertebrates.and invertebrates.A B

CD





Education

Vertebrates and invertebrates