Grouping & Identifying Living Things Classification Grouping & Identifying Living Things This Powerpoint is hosted on www.worldofteaching.com Please visit for 100’s more free powerpoints

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

Classifying Living Things We put livings things into two large groups: Animals Plants

Animals Animals are spilt into two major groups: Vertebrates Invertebrates

Vertebrates These are animals with a backbone. There are five groups of vertebrates: Amphibians Birds Fish Reptiles mammals

Amphibians Features: live on land and in water Have gills as youth and lungs as adults

Birds Have feathers and hollow bones Lay hard shelled eggs Warm blooded

Fish Characteristics vary dependant on which category the fish is classified under Features – Boney – Osteichthyes Cartilaginous – Chondrichthyes Jawless - Agnatha

Reptiles Features: lay eggs Cold blooded Dry, scaly skin Breathe air

Mammals CHARACTERISTICS Have hair and produce milk Give birth to live offspring (no eggs) Warm blooded

Summary of Vertebrates

Invertebrates These are animals without a backbone There are eight groups of invertebrates We will discuss four Nematodes Annelids Molluscs Arthropods

Molluscs Crawl on a single fleshy pad. Can have a shell

Annelids Features – Ring like segments Most live in water some on land

Nematodes Have long thin round worm like bodies Have bodies with no segments

Arthropods Have lots of legs and segmented bodies. There are four group of arthropods: Arachnids Centipedes & Millipedes Crustaceans Insects

Arthropods Have lots of legs and segmented bodies. There are four group of arthropods: Arachnids Centipedes & Millipedes Crustaceans Insects

Arachnids - spiders ticks and scorpians Four pair of jointed legs Land dwelling Breathe through gills called book lungs exoskeleton

Arthropods – Myriapods Centipedes & Millipedes Body has many segments Each segment has jointed legs

Arthropods - Crustacean Have five-seven pairs of legs First pair often used as pincers Bodies covered in shell Breathe through gills

Arthropods - Insects Have three pairs of jointed legs Bodies divided into three sections Often have wings Exoskeleton Breathe - tracheae

Summary