1. Explain how the following concepts are related: cellular respiration, exercise, heart rate, breathing rate. 2. Explain how the following concepts are related: blood sugar, digestive system, carbohydrates.
3. What does the pancreas do when a person’s blood sugar is too high?
4.What does the pancreas do when a person’s blood sugar is too low?

Which of the following statements about c4 carbon fixation is not true? a c4 carbon fixation is an adaptation for plants exposed to high light intensityb. c4 carbon fixation occurs in more plants than c3 carbon fixation.c c4 carbon fixation is more common in areas of high temperatures than c3 carbon fixation.d. c4 carbon fixation occurs in the inner cells of a leaf rather than the entire leaf.

What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled

Common symptoms of an iron-defiency anemia include muscle weakness shortness of breath and lightheadedness why does iron deficiency causes these symptoms