To carry out all activities of life is essential to the energy input. With the role of nutrition, the organism gets matter and energy you need.
The role of nutrition includes several processes: uptake of nutrients its transformation his distribution to all cells and elimination of waste products occurring as a result the use made of nutrients into cells. This is common animals and plants. For this, the living body has organs and specialized equipment in performing these tasks: digestive, respiratory, circulatory and excretory systems.
Segundo Romero
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