Food chains

• A model that shows how energy passes from organism to organism is called a food chain.
• Organisms at the very start of a food chain that can create glucose using photosynthesis are called producers.
• 2 groups of organisms that are producers?

  Algae

  Plants
• Which resource do plants not compete for?

  Food
• What do primary consumers feed on?

  Producers
• Tertiary consumers are organisms that eat secondary consumers.
• As energy passes along a food chain, most of the energy is lost.
• What is the secondary consumer; tree -> caterpillar -> shrew -> owl

  Shrew
• What is a predator?


  An animal that hunts and kills other animals for food.
• An organisms that’s killed and eaten by a predator is known as prey.