Ecology

• What is population

  All organisms of the same species living in a particular area
• What is community in ecology

  All the populations of different species living in a habitat
• Define habitat

  The natural environment where an organism lives
• What is an ecosystem

  A community of organisms interacting with the abiotic environment
• Have examples of abiotic factors

  Light intensity , temperature, pH, water availability
• Give examples of biotic factors

  Predators, food , competition and disease
• What is biodiversity

  The variety of species in a an ecosystem
• what is a quadrat used for

  Measuring population size and distribution of organisms
• What are producers

  Organisms that make their on foos like plants
• Name three types of consumers

  Primary, secondary and tertiary consumers
• What is the role if decomposers

  They break down dead material and recycle nutrients
• What is a food web

  A network of interconnected food chains
• why does only 10% of energy get passed on at each tropic level?

  energy is lost as heat, movement or waste
• What does a pyramid of biomass show

  The mass of living material at each trophic level