What are the six main categories of nutrients?
1. Carbohydrates 2. Fat 3. Protein 4. Vitamins 5. Minerals 6. Water
What is the square root of 144?
What is the cell theory?
The cell theory was first stated in 1858. It proposed that all living organisms are composed of one or more cells, cells are the basic unit of structure and function in all organisms, all cells are derived from pre-existing cells, in a multicellular organism, the activity of the entire organism depends on the total activity of its independent cells.