What type of screening test could be used to determine the likelihood that someone might develop cancer?
A. CEA test
B. genetic test
C. PAP test
D. PSA test
E. tumor marker test
Answer: B
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The formation of soil involves a combination of biological, chemical, and physical processes
Indicate whether the statement is true or false.
Which of the following is not part of the body's first line of defense?
A) fever B) intact skin C) mucus D) the pH of the stomach contents
A group of interbreeding individuals in a specific geographical location is called a
a. gene pool. b. species. c. population. d. community. e. ecosystem.
How do the concentrations of H+ and OH? compare to each other in an acidic solution?
A) The concentration of H+ is higher. B) The concentration of H+ is lower. C) The concentration of H+ is the same. D) Acidic solutions do not contain H+.