Energy Flow and Food Chains

Food Pyramid

Tertiary Consumers (Carnivore)

Secondary Consumers (Omnivore)

Primary Consumers (herbivore)

Primary Producers (leaves)

What do the arrows represent?

energy transfer

How much energy is retained at each trophic level?

10%

Ecosystem Levels

Organism: a single living creature in an ecosystem

Population: the amount of organism in a species

Community: a group of organisms growing/living in a habitat

Ecosystem: a community of organisms and their environment

Autotroph

producers because they are able to make their own food from raw materials and energy. Ex: plants, algae, and some types of bacteria

Heterotroph

consumers because they consume producers or other consumers. Ex: Dogs, birds, fish, and humans