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Feeding Relationships  Producer  Autotrophs – make their own food  Convert solar energy into chemical energy  Examples: Plants (terrestrial), algae and phytoplankton (aquatic)

Feeding Relationships  Consumer  Heterotroph – gets food from their environment  Herbivores – eat plants  Carnivores – eat meat  Omnivores – eat plants and meat  Detrivores – feed on remains of organisms  Decomposers – break down organic matter  Examples: Animals, and some bacteria and protists. fireflyafrica.blogspot.com

Trophic Levels  Each link in a food chain is known as a trophic level.  Arrows show the flow of energy and go from prey to predator

Trophic Levels Food web: a. shows all possible feeding relationships in a community at each trophic level. b. represents a network of interconnected food chains.

Look at the crickets. What do they eat? Look at the Birds. What do they eat?

Trophic Levels :  Ecological Pyramid: show mass and energy at each trophic level  Biomass: the amount of organic matter comprising a group of organisms in a habitat.  As you move up a food chain, both available energy and biomass decrease.  Only 10% of the energy goes from one level to the next.