Farmer Brown believes that increasingly large doses of antibiotics will produce increasingly large beef cattle.
What is the CORRECT match between experimental variables and activities in Farmer Brown's experiment?
Responses
A dependent variable; All cattle receive the same hay, water, and living quarters.dependent variable; All cattle receive the same hay, water, and living quarters.
B control variable; Different groups of cattle are given different doses of antibiotics.control variable; Different groups of cattle are given different doses of antibiotics.
C independent variable; Farmer Brown tests only Antibiotic X in even incremental dosages.independent variable; Farmer Brown tests only Antibiotic X in even incremental dosages.
D hypothesis; Farmer Brown observes that dosage with 500 mg of antibiotics produces the most weight gain.