A treatment that only undergoes two statuses - treated and untreated-is known as this kind of treatment?
A. Biased
B. Attenuated
C. Random assignment
D. Dichotomous
Answer: D
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True or False: the energy of a system is defined as the system's capacity to do work
A. true B. false
Which of the following is NOT a necessary component of a "true" circulatory system?
A. blood or hemolymph B. blood vessels C. one or more hearts D. capillaries E. All of these choices are components of a true circulatory system.
The adrenal glands are closest to what organ(s)?
a. brain b. pancreas c. testes/ovaries d. thymus e. kidneys
Menstrual flow begins in response to:
a. rising levels of FSH and LH b. falling levels of estrogen only c. falling levels of progesterone only d. falling levels of estrogen and progesterone e. rising levels of LH and falling levels of FSH