Biodiversity, evolution and classification

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The Five Kingdom Classification: Prokaryotae

Prokaryotae

  • Unicellular organisms
  • NO internal cell membranes 
  • NO nuclear membrane
  • NO endoplasmic recticulum
  • NO mitochondria
  • NO golgi body
  • Possess a cell wall but it is NOT made out of cellulose.

Examples:

  • Bacteria
  • Blue-green algae
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The Five Kingdom Classification: Protoctistas

Protoctistas

  • Small eukaryotic organisms 
  • Membrane bound organelles and a nucleus

Examples

  • Algae
  • Water moulds
  • Slimes moulds
  • Protozoa
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the Five Kingdom Classification: Fungi

Fungi

  • Eukaryotic
  • A body consisting of a network of threads called HYPHAE, forming a MYCELIUM
  • A rigid cell wall made of chitin
  • NO photosynthetic pigments 
  • Feeding is heterotrophic
  • Saprophytic or Parasitic
  • Some HYPHAE have no cross-walls but in others they are present. Septa may be present instead 
  • Reproduction is by spores that lack flagella 
  • Penecillium
  • Yeast
  • Mushroom
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The Five Kingdom Classification: Plants

Plants

  • Multicellular
  • Carry out photosynthesis
  • Cells are eukaryotic
  • Cellulose cell walls
  • Vaculoles containing cell sap
  • Chloroplasts containing photosynthetic pigmets.
  • Mosses 
  • Liverworts
  • Ferns
  • Conigers
  • Flowering plants
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The Five Kingdom Classification: Animals

Animals

  • Mulicellular
  • Heterotrophic
  • Eukaryotes
  • Cells lacking a cell wall
  • Show nervous coordination
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