If you set up an experiment with two different independent variables, then the results would

a. inconclusive; you would not know which of the two variables caused the change
b. definitive; the results would be more accurate if you change two variables at a time
c. conclusive; showing a strong correlation between dependent and independent variables
d. somewhat conclusive; you know the change resulted from one of the variables

Describe the function of the endomembrane system? what organelles are involved?

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?