Suppose you burn a substance in the air (reactants) and produce smoke and ash (products). the law of conservation of mass states that the mass of your reactants should be the mass of your

label a cell membrane

label b cytoplasm

label c ribosomes

label d dna

the membrane forms the outside of the cell

cytoplasm is the liquid within

ribosomes are the components within that distribute rna

the dna is the genetic make-up

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.