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water, carbon dioxide, sunlight, and some oxygen is needed
Dirt
the organisims will eventually die off after their source of nutrients is taken away- eventually if no reliable nutrients are avaible, ther organisms will eventually become extinct
Nutrients are used by the body's cells as a source of energy
Nutrients are used by the body's cells as a source of energy
Plants are the ultimate source of of nutrients and energy.By the process of photosynthesis plants produce 3C compound,which provide carbon backbone for the synthesis of different organic compounds.This carbon backbone is used in the synthesis of vitamins ,proteins and other nutrients.
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Nutrients and energy.
Inorganic substances
It is a great source of Calcium. When uncooked it is a source of Vitamin K.
Vitamin B12, and folic acid. B6 Source: http://answers.Yahoo.com/question/index?qid=20090329200337AAq2QsK
Avocados are a great source of fruit oil and digestive fats.