 the transfer of energy and matter in the form of food when one organism eats another organism.

 a group of food chains within the same ecosystem.

1. Sun – the energy source that fuels a food chain. 2. Producer – plants convert the sun’s energy into food by a process known as photosynthesis.

 Herbivore – an organism that eats only producers.  Carnivore – an organism that eats only other consumers.  Omnivore – an organism that eats both producers and consumers  Scavenger – eats dead organisms.

– an organism that feeds on dead or decaying matter and breaks down the nutrients into the soil making them available for use. Decomposer -

Producer [Photosynthesis] Primary Consumer (Herbivore or Omnivore) Secondary Consumer [Etc. – Tertiary, Quaternary] (Omnivore or Carnivore Scavenger / Decomposers Nutrients in the soil absorbed by plants – process starts anew Arrow represent the flow of energy

Energy is lost (10% energy transfer) as you move up the pyramid