science

• Biodiversity


  The diversity of organisms, whether microorganisms, animals or plants
• Biodiversity


  • Exists as a result of the diversity of habitat and climate
• Importance of Biodiversity


  • Sources of food
  • Balance in nature
  • Recreational places
  • Medical
  • Raw material for industries
  • Education
• Effective Biodiversity Management


  • Banning and killing or trade of endemic and endangered animals
  • Protecting the habitat
  • Undertaking reproductive programmes
• Classification of Organisms


  • Animals
  • Plants
• Animals

  • Invertebrates
  • Vertebrates
• Invertebrates


  • Without legs
  • With segmented body
  • With legs
• Invertebrates


  Animals without a backbone
• Invertebrates without legs

  • Sponge
  • Corals
• Invertebrates with segmented body


  • Earthworm
  • Leech
• Invertebrates with legs


  • Ant
  • Butterfly
  • Scorpion
  • Prawn
• Vertebrates


  • Fish
  • Amphibians
  • Reptiles
  • Birds
  • Mammals
• Vertebrates


  Animals with a backbone
• Fish

  • Poikilothermic
  • Breathe through gills
  • Lays eggs
  • Undergo external fertilisation
• Amphibians

  • Poikilothermic
  • Young amphibians - breathe through gills
  • Adult amphibians - breathe using lungs and moist skin
  • Undergo external fertilisation
• Reptiles

  • Poikilothermic
  • Breathe through lungs
  • Produce eggs with a shell
  • Undergo internal fertilisation
• Birds

  • Homeothermic
  • Breathe through lungs
  • Produce eggs with hard shell
  • Undergo internal fertilisation
• Mammals

  • Homeothermic
  • Breathe through lungs
  • Give birth and nurse their young
  • Undergo internal fertilisation
• Plants

  • Non-Flowering Plants
  • Flowering Plants
• Non-Flowering Plants


  • Moss
  • Fern
  • Conifer
• Non-Flowering Plants


  • Reproduce by producing spores
  • Non-vascular
  • Reproduce by producing spores
  • Vascular
  • Reproduce by bearing cones
  • Vascular
• Flowering Plants


  • Monocotyledons
  • Dicotyledons
• Monocotyledon


  A seed that has one cotyledon
• Dicotyledon


  A seed with a pair of cotyledons
• Differences between Monocotyledons and Dicotyledons


  • Number of cotyledons
  • Root
  • Leaf
  • Stem
• Monocotyledons


  • Paddy and maize plants
• Dicotyledons


  • Tomato plant and durian tree