This preview shows page 1. Sign up to view the full content.
Unformatted text preview: Classification
Grouping & Identifying Living Things This Powerpoint is hosted on www.worldofteaching.com
Please visit for 100’s more free powerpoints Why classify?
Why Think of three examples where we group things. Why do we group these things? Classifying Living Things
Classifying We put livings things into two large groups:
Animals Plants Animals
Animals Animals are spilt into two major groups:
Vertebrates Invertebrates Vertebrates
Vertebrates These are animals with a backbone. There are five groups of vertebrates:
Amphibians Have moist skin Lay jelly coated eggs in water Lives on land and water Birds
Birds Have feathers and hollow bones Lay hard shelled eggs Warm blooded Fish
Fish Have wet scales Lays eggs in water Lives in water Mammals
Mammals Have hair and produce milk Give birth to live offspring (no eggs) Warm blooded Reptiles
Reptiles Have dry scales Lay leathery shelled eggs Cold blooded Summary of Vertebrates
Invertebrates These are animals without a backbone There are eight groups of invertebrates Molluscs Flatworms Annelids Roundworms Sponges Echinoderms Cnidarians Arthropods Molluscs
Molluscs Crawl on a single fleshy pad. Can have a shell Flatworms
Flatworms Have flat worm like bodies Annelids
Annelids Have round worm like bodies Have bodies divided into segments Roundworms
Roundworms Have long thin round worm like bodies Have bodies with no segments Sponges
Sponges Have bodies made of loosely joined cells Echinoderms
Echinoderms Have bodies divided into five parts Have spiny outer covering Cnidarians
Cnidarians Have thin sack like bodies Have tentacles Arthropods
Arthropods Have lots of legs and segmented bodies. There are four group of arthropods: Arachnids
Centipedes & Millipedes
Insects Arthropods - Arachnid
Arthropods Have four pairs of legs. Have bodies divided into two sections Arthropods – Centipedes
Millipedes Have long thin bodies and pairs of legs on each of their many body sections Arthropods - Crustacean
Arthropods Have fiveseven pairs of legs First pair often used as pincers Bodies covered in shell Arthropods - Insects
Arthropods Have three pairs of legs Bodies divided into three sections Often have wings ...
View Full Document
This note was uploaded on 11/07/2011 for the course BIOLOGY 100 taught by Professor Staff during the Winter '08 term at BYU.
- Winter '08