|7| + |-2 | = ?
Note: This problem is the number -2 within an absolute value sign, not the number -21.
A. 0
B. 14
C. 5
D. 9

The passage suggests that in conducting this medical study, researchers
A. drew few conclusions beforehand on the indeterminate outcome of their scientific research.
B. discovered associations they had not been looking for.
C. had little interest in calcium's effect on organs other than the kidneys.
D. neglected researching how the intake of calcium can reduce urinary excretion of oxalate.
An unknown element has a mass number of 33 and an atomic number of 12. How many neutrons does the element contain?
A. 21
B. 12
C. 33
D. 45
Which of the following is true of the axial skeleton?
A. The facial bones include four nasal bones.
B. The mandible and maxilla are the only moveable bones of the skull.
C. Ossicles are a part of the jaw bone.
D. The axial skeleton consists of a total of 28 bones of the skull.
What is the hormone that stimulates uterine contractions?
A. progesterone
B. prolactin
C. oxytocin
D. estrogen
The volume of air in a normal breath is called ____.
A. tidal volume
B. oxygen reserve
C. residual volume
D. total lung capacity
Select the correct word(s) for the blank in the following sentence.
They have lived in an apartment __________ they arrived in Chicago.
A. for
B. from
C. since
D. during
The liver is an organ responsible for detoxifying the body of many harmful substances. Therefore, you might expect the liver to contain a high amount of:
A. Rough endoplasmic reticulum.
B. Lysosomes.
C. Mitochondria.
D. Smooth endoplasmic reticulum.
Which of the following activities does NOT lead to cellular energy production?
A. Glycolysis.
B. Gluconeogenesis.
C. Oxidative Phosphorylation.
D. Cellular Respiration
Positive feedback is a mechanism used by the body that results in amplification or enhancement of a signal that has already been activated. An example of this would be ____.
A. shivering to increase temperature
B. the release of oxytocin to increase contractions during childbirth
C. slowing metabolism in response to starvation
D. blood vessels regulating blood pressure