ClassificationGrouping & Identifying Living ThingsThis Powerpoint is hosted on www.worldofteaching.comPlease visit for 100s more free powerpoints

Why classify?Think of three examples where we group things.

Why do we group these things?

Classifying Living ThingsWe put livings things into two large groups:

Animals

Plants

AnimalsAnimals are spilt into two major groups:

Vertebrates

Invertebrates

VertebratesThese are animals with a backbone.There are five groups of vertebrates:

AmphibiansBirdsFishMammalsReptiles

AmphibiansHave moist skinLay jelly coated eggs in waterLives on land and water

BirdsHave feathers and hollow bonesLay hard shelled eggsWarm blooded

FishHave wet scalesLays eggs in waterLives in water

MammalsHave hair and produce milkGive birth to live offspring (no eggs)Warm blooded

ReptilesHave dry scalesLay leathery shelled eggsCold blooded

Summary of Vertebrates

InvertebratesThese are animals without a backboneThere are eight groups of invertebrates

MolluscsFlatworms AnnelidsRoundwormsSpongesEchinodermsCnidariansArthropods

MolluscsCrawl on a single fleshy pad.Can have a shell

FlatwormsHave flat worm like bodies

AnnelidsHave round worm like bodiesHave bodies divided into segments

RoundwormsHave long thin round worm like bodiesHave bodies with no segments

SpongesHave bodies made of loosely joined cells

EchinodermsHave bodies divided into five partsHave spiny outer covering

CnidariansHave thin sack like bodiesHave tentacles

ArthropodsHave lots of legs and segmented bodies.There are four group of arthropods:

ArachnidsCentipedes & MillipedesCrustaceansInsects

Arthropods - ArachnidHave four pairs of legs.Have bodies divided into two sections

Arthropods Centipedes & MillipedesHave long thin bodies and pairs of legs on each of their many body sections

Arthropods - CrustaceanHave five-seven pairs of legsFirst pair often used as pincersBodies covered in shell

Arthropods - InsectsHave three pairs of legsBodies divided into three sectionsOften have wings