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Grouping & Identifying Living Things
Classification Grouping & Identifying Living Things This Powerpoint is hosted on Please visit for 100’s more free powerpoints
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Why classify? Think of three examples where we group things.
Why do we group these things?
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Classifying Living Things
We put livings things into two large groups: Animals Plants
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Animals Animals are spilt into two major groups:
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Vertebrates These are animals with a backbone.
There are five groups of vertebrates: Amphibians Birds Fish Reptiles mammals
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Amphibians Features: live on land and in water
Have gills as youth and lungs as adults
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Birds Have feathers and hollow bones Lay hard shelled eggs
Warm blooded
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Fish Characteristics vary dependant on which category the fish is classified under Features – Boney – Osteichthyes Cartilaginous – Chondrichthyes Jawless - Agnatha
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Reptiles Features: lay eggs Cold blooded Dry, scaly skin Breathe air
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Mammals CHARACTERISTICS Have hair and produce milk
Give birth to live offspring (no eggs) Warm blooded
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Summary of Vertebrates
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Invertebrates These are animals without a backbone
There are eight groups of invertebrates Flatworms Annelids Roundworms Sponges Echinoderms Cnidarians
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Molluscs Crawl on a single fleshy pad. Can have a shell
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Flatworms Have flat worm like bodies
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Annelids Features – Segmented
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Roundworms/Nematodes
Have long thin round worm like bodies Have bodies with no segments
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Sponges Have bodies made of loosely joined cells
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Echinoderms Have bodies divided into five parts
Have spiny outer covering
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Cnidarians Have thin sack like bodies Have tentacles
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Arthropods Have lots of legs and segmented bodies.
There are four group of arthropods: Arachnids Centipedes & Millipedes Crustaceans Insects
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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
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Arthropods – Myriapods Centipedes & Millipedes
Have long thin bodies and pairs of legs on each of their many body sections
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Arthropods - Crustacean
Have five-seven pairs of legs First pair often used as pincers Bodies covered in shell
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Arthropods - Insects Have three pairs of legs
Bodies divided into three sections Often have wings
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Summary
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