food chains and trophic levels

• give order of food chain

  1. producer
  2. primary consumer
  3. secondary consumer
  4. tertiary consumer
• describe producer

  makes own food from suns energy through photosynthesis
• describe trophic levels

  1. producers
  2. herbivores and primary consumer
  3. carnivore and secondary consumer
  4. carnivore and tertiary consumer
• describe decomposer

  break down dead organic matter by secreting enzymes into environment
• describe transfer of biomass between trophic levels

  10 percent of each biomass transferred to next trophic level
• give examples of losses of biomass

  • not whole organism eaten
  • not all material absorbed but become faeces
  • biomass loss as waste product