The use of controls and statistical testing are two aspects of experimental design that help to ensure ________
A) psychosomatic effects
B) treatment groups
C) an adequate sample size
D) objective and reliable results
E) experimental bias
D
You might also like to view...
Vaccines are effective because they
A. stimulate the development of immunologic memory. B. inhibit antibodies from having secondary responses. C. immediately stimulate cellular immunity to eliminate all of the pathogen in the body. D. increase the number of natural killer cells while decreasing the numbers of T and B cells.
Which of the following is NOT an effect of parasympathetic action?
A. increased tear production B. increased motility of the intestines C. increased metabolism D. increased gastric secretion
RER is most abundant in cells specialized for steroid production
Indicate whether the statement is true or false
Which organ system helps the body get rid of nitrogenous wastes?
A) Urinary B) Respiratory C) Endocrine D) Cardiovascular