Ascientist hypothesizes that metabolic steroids are dangerous to the health of an athlete. what will be the experimental variable of his or her study?

The correct answer is any substance or environmental factor other than a steroid

The independent variable is the factor or behavior that is manipulated by the experimenter in order to observe the effect of that manipulation on another factor or behavior that is the dependent variable. To you It is also called the experimental or active variable.

the correct labels are as follows:

a: yellow river

b: himalayan mountains

c: north china plain

d: taklimakan desert

answer; researchers typically cannot control people's sexual behaviors as would be necessary in an experiment;