Ecosystems

What´s an ecosystem?

• Is a community of animals

• Is a community of animals and plants

• Is a community of animals, plants, micro-organisms, and non- living things

Grasslands are freshwater ecosystems.

• True

• False

Animals temperate forests

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Coastal ecosystems

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Food chains show how living things in an ecosystem get energy. Plants are...

• Consumers

• Producers

• Descomposers

Consumers eat....

• make their own food

• eat plants

• eat other animals

Living things are called...

• Biotic factors

• Abiotic factors

Abiotic factors

• Sunlight

• Wind

• Bear

• oxygen

When humans take too many fish from the sea

• Pesticides

• Litter

• Deforestation

• Overfishing

When humans cut down a lot of trees in one place

• Pesticides

• Deforestation

• Overfishing

• Air pollution