Which of the following is not released by trees into the atmosphere?

Which conditions need to be in balance for cells to function? check all that apply. blood sugar food intake body water body temperature body mass

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

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?