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Animals are almost the same as human in energy transformations. They change food into thermal and mechanical energy. Due to this constant temperature is maintained in a body and animals are able to move.
The five basic needs of all animals are sunlight, water, air, food and habitat. Sunlight is the fundamental source of energy on earth. Solar energy enters the living ecosystems though the process of photosynthesis carried out by green plants and is transformed into usable chemical energy. Continue Reading.