Limestone is a type of sedimentary rock. Marble is a type of metamorphic rock created from limestone. Magma forces its way into a cliff of limestone, turning whatever it touches into marble. Analyze this reaction. Which type of metamorphism has occurred? Explain how you know.

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.

answercells,tissues,organs,organ,system-organism;

levels of biological organization; organism,population,community,ecosystem,biome,biosphere,

hope this .good luck

not sure if this is what you'r looking for prokaryotes have organelles hope this out at least.