Page 4 - Food_chains_FULL

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Prairie Ecosystem

An ecosystem is a group of organisms
and their physical environment. All
organisms within an ecosystem need
energy to survive.

Organisms obtain energy from
different sources. Each organism plays
a role in the flow of energy through
the ecosystem.

Producers make their own food
through the process of photosynthesis.
Plants, algae and some bacteria are Producers
producers that use the Sun’s energy
to make food.

sun’s energy
6 CO 2 + 6 H 2O C 6H 12O 6 + 6 O 2
carbon water food oxygen
dioxide chlorophyll
Photosynthesis

Consumers get energy by eating other
organisms. They are often classified by
sun
what they eat. Herbivores only eat plants.
Carnivores eat animals, and omnivores
eat both plants and animals.

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sun

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