An experiment was conducted to test the effectiveness of a blood pressure drug. Before the trial, all patients’ blood pressure was recorded. One hundred patients were given the drug for six months, and one hundred different patients were given a placebo (sugar pills). After six months, all the patients’ blood pressures were measured. What is the experimental group for this experiment?

amber has allowed scientists to study dna that has been preserved over millions of years.

it is a limiting nutrient limited by a single nutrient in the ecosystem, & the single goes very slow.

the correct answer is anaphylaxis.

anaphylaxis is a condition caused by insect bites, foods, medications, manifested by tongue swelling, shortness of breath, vomiting, low blood pressure. it sometimes may occur without an obvious reason. it is treated with epinephrine injection.other tretments include antihistamines and steroids,