Bill is involved in a research study on the effectiveness of a new antidepressant. If Bill serves as his own control, which of the following is the research employing? double-blind method

single-blind method

between-subject design

within-subject design

quasi-independent variable

Which statement best describes lymph? a. a clear fluid that carries proteins, water, white blood cells, fat, dead cells, and toxins that drain from the fluid between the cells of the body b. a clear fluid in the cells that to secrete and transport hormones from one region of the body to another c. a thick, opaque, and yellowish fluid that is present when there is an infection in the body d. a clear, liquid component of blood that contains red blood cells, white blood cells, platelets, and iron