Geography

non-living thinks

a natural system made up of plants, animals and the environment

Living things

Convert energy from the mainly sunlight into sugar. the most obvious producers are plants that convert energy from the sun by photosynthesis.

get energy from the sugars produced by the producers. E.g. a pond snail, because it eats plants.

They break down plants and animal material and return the nutrients to the soil e.g. Bacteria, funghi

Shows the connections between producers and consumers in a rather more complex way

foods that are used by plants or animals to grow

Two main sources:

-rainwater washes chemicals out of the atmosphere 

-weathered rock releases nutrients into the soil

When plants or animals die, the decompisers help them to recycle the nutrients making them available one again for the growth of plants or animals.