Calculate the fractional saturation for hemoglobin when the partial pressure of oxygen is 78 mm Hg. Assume hemoglobin is 50% saturated with oxygen at a partial pressure of 24 mm Hg and that the Hill coefficient is 3.

What is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.

What is a food web? a. the structure used to trap food b. a set of complex carbohydrates c. a group of interconnected food chains d. the pattern of food nutrition

True or false: when a cell differentiates, it becomes a stem cell.