Topic 2-part 2

HideShow resource information
  • Created by: Alice
  • Created on: 08-05-13 09:09
View mindmap
  • Topic 2
    • Human communication
      • Body language, gestures and facal expressions and language
    • Plant communication
      • Strong scented flowers. Release chemicals to warn off insects or attract them
    • Famous Ethologists
      • Nick Tinbergen- Famous for showing that baby gulls know to peck their parent's beck to show they want food.
      • Konard Lorenz- Remembered for discovering imprinting.
      • Dian Fossey- First person to live peacefully with gorillas in africa.Discovered males will kill young males to stop females from mating with them
      • Jane Goodall- worked out chimpanzees have distinct personalities and they can use tools.
    • Co-evolution- When a plant and animal have evolved together because of a special link between them
      • Hummingbird- evolved with a flower. The bird gets food source and pollinates the flower it while feeding.
        • Hummingbirdpeck evolved to fit in the flower. Flower has bright colours to attract the bird.
      • Snapdragon flowers open to be pollinated by bees
    • Human evolution
      • Fossil Evidence
        • Ardi-found in africa, dates 4.4 milion years. bones show how chimps and humans evolved differently
        • Lucy- human-like fossilied skeleton dates 3.2 million years ago. shows small skull (like apes) and likely to walk upright
      • Human using tools
        • First used simple tools like flints in stone age
        • In the middle ages, shwoen they used arrowheads and spears
      • Impact of cllimate change-
        • People lived in communities and didn't travel far from their homes
        • Last ice age, humans moved from africa to parts of asia and they crossed a frozen bering stright bridge which joined alaska to siberia.
      • Mitochondria DNA- passed down by the mother. Scientists can trace back human M-DNA to construct a 'DNA family tree' and predict when a organism was alive and some behaviours
        • Scientists traced a human ancestor called African eve. She lived 200,000 in africa


No comments have yet been made

Similar Biology resources:

See all Biology resources »See all resources »