Chap2 classifying living things
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  • 1. Classifying Living Things
  • 2. Kingdom • Living things are divided into 5 large groups called kingdoms • kingdoms share similar characteristics • bacteria(monerans), protists, fungi, plants, animals
  • 3. Classification • Classification helps scientist compare different animals • What do these animals have in common? • Would they be put in the same group?
  • 4. Groups • The most general group is the kingdom • each step eliminates organisms until there is only one • The species is the smallest most exact group
  • 5. Characteristics • To divide groups to make them smaller scientist view characteristics • How would we classify the groups at left?
  • 6. Plant groups • Plants are classified just like animals • Two large groups are vascular - have transport tubes(trees) • non- vascular = absorb nutrient into cells(mosses)
  • 7. • What does this circle graph tell you about where most species of animals live?
  • 8. Animal groups • Vertebrates = backbones • Invertebrates = no backbone • What would this octopus be? • What are some examples of each?
  • 9. Vertebrates • Broken into five groups • fish, amphibians, reptiles, birds, and mammals • What are some differences between these groups?
  • 10. Fish • Have gills that absorb oxygen dissolved in water • live entire life in water • have scales • cold blooded • most lay eggs • More than 19,000 species
  • 11. Amphibians • Begin life in water • live on land as adults • must return to water to lay eggs • Moist smooth skin • cold blooded • frogs, toads, newts, salamanders • More than 4,000 species
  • 12. Reptiles • Cold blooded • dry scaly skin • most lay leathery eggs on land • More than 6,000 species
  • 13. Birds • Lay hard shell eggs • warm blooded • have feathers, beaks, and scaly legs • Have light bones • More than 9,000 species
  • 14. Mammals • • • • Warm blooded have hair live birth produce milk for young • More than 4,000 species
  • 15. Invertebrates • All lack a backbone • have different body forms and live in different areas • many divisions • sponges, worms, mollusk, echinoderms, arthropods
  • 16. • Largest group of invertebrates • have exoskeletons • crustaceans (crabs, lobsters, shrimp) • insects (beetles, butterflies, ants, roaches, bees) • arachnids (scorpions, ticks, mites, spiders) Arthropods