Food chains

• What do food chains always start with?

  A Producer
• What are typical examples of producers?

  • Green plants
  • Algae
• What is biomass?

  The mass of living material/molecules in an organism
• What can be thought of as energy stored in a plant?

  Biomass
• How is energy transferred through living organisms?

  When organisms eat other organisms
• What does a primary consumer eat?

  Producer
• What are Primary Consumers eaten by?

  Secondary Consumers
• What eats Secondary Consumers?

  Tertiary Consumers
• What is a consumer?

  An organism that eats other organisms
• How do producers make glucose/energy?

  Photosynthesis
• What are consumers that kill and eat other animals called?

  Predators
• What are animals that are killed and eaten by predators called?

  Prey
• In a stable community:

  • The population of a species is usually limited by the amount of food available
  • If prey populations increase, predator populations increase
  • If predator populations increase, prey populations decrease
• Are predator-prey cycles in or out of phase?

  Out of phase
• Do predator and prey populations respond to each other slowly or quickly?

  Slowly