Which of the following statements about the development of disease treatments is true? (A) A person's genetic makeup allows scientists to ignore replication in disease treatment.

(B) Replication is necessary to develop medications and monitor their effects on the body.

(C) To determine how treatments will act on a disease, scientists use repetition but not replication.

(D) Development of vaccines against pathogenic organisms does not require repetition of the investigation.

Sperm pass through the and connect to a short ejaculatory duct. vas deferens prostrates seminiferous tubules none of the above

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

What is the period of cell life when it is conducting