Scientists hypothesized that E. coli contained one operon. After further experimentation, they discovered that, in fact, E. coli contained two operons. Using this information, answer the questions provided What is one way scientists are able to study operons in organisms?

You began membership in a new health and fitness club which has access to a dietician and personal trainer. they you develop a special eight-week diet and exercise program. the data in the following table represents your weight, w, as a function of time, t, over an eight-week period. time (weeks) 0 1 2 3 4 5 6 7 8 weight (lb) 150 144 143 141 140 137 137 132 129 your weight decreases during each of the first five weeks of the program. determine the actual change in weight over the first five weeks of the program by subtracting your initial weight from your weight at the end of the first five weeks. what is the sign of your answer? what is the significance of this sign? a. 137-150 = -13 lb; a change in weight is negative because the weight decreases. b. 137-150 = 13 lb; a change in weight is positive because the weight decreases. c. 150-137 = -13 lb; a change in weight is negative because the weight increases. d. 150-137 = 13 lb; a change in weight is positive because the weight increases.

If bp readings are consistently 145 mm hg/99 mm hg over a period of time, the patient likely has a. prehypertension. b. normal bp. c. hypertension. d. hypotension.

Building muscle has which of the following effects? it increases the metabolic rate. it relieves pressure on the joints. it slows weight loss considerably.