Dna does not contain the nitrogen base

Food provides molecules that serve as fuel and building material for all organisms. plants undergo photosynthesis and make their own food. other organisms, like us and the horse seen above, are consumers and eat food. how do all organisms use food as fuel? be sure to include the name of the process in your answer. me.

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above

The cluster of developing cells from conception until birth is called an