We all eat food for energy. This is a simple model of how our cells produce energy, ATP. In order for our cells to use the food you see here for energy, what must happen first?

Compare and contrast region e in the illustration above with region d. describe the physical characteristics of each region.

Aristotle classified animals according to their a. habitat and mating behavior c. mating behavior and relatedness b. habitat and physical differences d. physical differences and mating behavior

What is usually (but not always) related to the metabolic processes of living organisms in its organic form?