A stem cell divides and differentiates into a muscle cell and a brain cell. Which of the following correctly compares the muscle cell and the brain cell?

A. The two cells have the same DNA, but the muscle cell uses different sections of its DNA than the
brain cell.

B. The two cells have the same DNA, and the muscle cell uses the same sections of its DNA as the brain
cell.

c. The two cells have different DNA, and the muscle cell uses different sections of its DNA than the
brain cell.

D. The two cells have different DNA, but the muscle cell uses the same sections of its DNA as the brain
cell.

What evidence did mendel find that supported his law of independent assortment? a. dominant traits are expressed when there is a dominant allele. b. traits do not affect the inheritance of other traits. c. some traits have three or four different alleles. d. plants and animals can both reproduce sexually.

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

Aresearcher designed an investigation to test what effect eating different types of food would have on blood insulin levels. she selected 10 male subjects who were all 25 years of age and in good health. the experiment took place over 3 days. at 8: 00 a.m. on each day, the subjects ate a meal consisting of only 1 type of food. they had their blood insulin levels measured after consuming the meal. on day 1 they ate a high fat diet, on day 2 they ate a high protein diet, and on day 3 they ate a high sugar diel what is the independent variable in this experiment? a the age of the subjects b the blood insulin level c the type of food consumed d the time of day the meal was consumed