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A decomposer breaks down and gains nutrients from dead organisms
The correct option is (A) to fuel their chemical reactions
A lot of biochemical reactions occur per minute inside living cells and these reactions have to be sustained because the survival of living cells depend on them. For these reactions to proceed, energy is needed. This energy is usually obtained from the food which a living organism consumed. The mitochondria, which is the power house of the cell, is the one which convert the energy to the ATP form, which is usable by the cells.
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Answer:
RNA molecules are made up of nucleotides
Explanation:
Carbohydrates are made up of monosaccharides (sugars!)
Lipids are made up of glycerol and fatty acids
Proteins are made of amino acids