HELP HURRY Which of the following is a true statement? A. Plants gain most of their mass from water and the nutrients they absorb from the soil.
B. Plants grow larger when planted in nutritious soil because they are taking in more mass from the nutrient-rich soil.
C. Because matter cannot be created, plants must gain their mass from water, soil, or air.
D. Controlled experiments demonstrate that plants gain most of their mass from water.

Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?

Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.

What happens to the glucose molecule during the process of cellular respiration? (5 points) select one: a. it gets broken down. b. it forms oxygen. c. it builds muscles. d. it uses up energy.