University Of Maryland Final Exam BIOL 101- 10 Questions, Correctly Answered

A group of researchers investigated the effects of a drug called Pressure Drop Y on lowering blood pressure in a group of men between the ages of 50 and 70 years old. The researchers did the following experiment and obtained the indicated results: One group of 150 men took a tablet containing Pressure Drop Y for 3 weeks – 95 of these men experienced decreased blood pressure by at least 10%. Another group of 150 men were given a tablet with no added Pressure Drop Y for 3 weeks – 10 of these men experienced decreased their blood pressure by 10%. What is the dependent variable in this experiment? Amount of Pressure Drop Y Blood pressure The age and gender of the participants The 3 week time period and sample size of 150 The group of men that received the pills with no added Pressure Drop Y