1. Grouping & Identifying Living Things
Classification
Grouping & Identifying Living Things
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2. Why classify? Think of three examples where we group things.
Why do we group these things?

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

4. Animals
Animals are spilt into two major groups:

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

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

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

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

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

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

11. Summary of Vertebrates

12. Invertebrates These are animals without a backbone
There are eight groups of invertebrates
Flatworms
Annelids
Roundworms
Sponges
Echinoderms
Cnidarians

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

14. Flatworms
Have flat worm like bodies

15. Annelids
Features –
Segmented

16. Roundworms/Nematodes
Have long thin round worm like bodies
Have bodies with no segments

17. Sponges
Have bodies made of loosely joined cells

18. Echinoderms Have bodies divided into five parts
Have spiny outer covering

19. Cnidarians
Have thin sack like bodies
Have tentacles

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

21. Arthropods - Arachnid Features – 4 pair of jointed legs 2 body parts
Lack antennae and wings
Diverse group of spiders, scorpians, ticks, mites, harvestman and their cousins

22. Arthropods – Myriapods Centipedes & Millipedes
Have long thin bodies and pairs of legs on each of their many body sections

23. Arthropods - Crustacean
Have five-seven pairs of legs
First pair often used as pincers
Bodies covered in shell

24. Arthropods - Insects Have three pairs of legs
Bodies divided into three sections
Often have wings

25. Summary