Key Area 1 - Ecosystems

• Species

  A group of individuals that can interbreed to produce fertile offspring
• Biodiversity

  • Variety of species in an ecosystem
• Producer

  Can produce food using photosynthesis, the green plants
• Consumer

  Obtains energy by eating other animals
• Herbivore

  Only eats plants
• Carnivore

  Only eats animals
• Omnivore

  Eats both plants and animals
• Predator

  Animal which hunts other animals for food
• Ecosystem

  All of the living organisms and non-living components they interact with in a particular habitat
• Niche

  The role that an organism plays within a community
• An example of a Niche

  • A penguin eats fish to produce food for a seal
• interpret food webs can predict the affect of the removal of organisms
• When would competition would occur

  When resources are in short supply
• Define Intraspecific

  when the same species compete for all of the same resources
• Define Interspecific

  When Different species compete for one or more resources
• Which is more intense out of interspecific and intraspecific

  Intraspecific because they are competing for all of the same resources
• Define a food chain

  It shows the direction of energy flow from Organism to organism
• Define a food web

  All the different food chains in a singular ecosystem
• Prey

  The hunted