unit 3 biology

• Population


  The number of individuals of one species in an ecosystem
• Habitat


  The area of an ecosystem where an organism lives
• Carnivore


  An animal that feeds only on other animals
• Herbivore


  An animal that feeds only on producers
• Competition


  The struggle for resources that occurs between living organisms
• Prey


  A type of animal that is hunted for food
• Producer


  An organism that can make its own food by photosynthesis. Includes plants and algae
• Biodiversity


  The range of different species that exist in an ecosystem. eg. all the plants, animals and micro-organisms
• Consumer


  An organism that feeds on other organisms for energy
• Omnivore


  An animal that feeds on both plants and other animals
• Ecosystem


  A natural biological unit made up of both living and non-living parts
• Interspecific


  Competition for resources between members of different species
• Community


  All the different populations of organisms that live in a habitat
• Species


  A group of organisms that can interbreed to produce fertile offspring
• Food chain


  A diagram that shows the feeding relationships between organisms
• Predator


  An animal that hunts and kills other animals for food
• Food web


  A diagram that shows how different food chains are linked in an ecosystem
• Niche


  The role that an organism plays within an ecosystem
• Intraspecific


  Competition for resources between members of the same species
• Biotic (Living Factors)


  • Disease
  • Grazing
  • Predation (predators)
  • Food availability
• Abiotic (non-Living Factors)


  • Light intensity
  • Wind speed
  • Soil moisture
  • Temperature