Approximately how many oxygen molecules can a single RBC carry?
A. one hundred
B. less than 10
C. one thousand
D. one billion
E. one million
Answer: D
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PCBs are considered heavy metals
Indicate whether the statement is true or false
All of the following are used to construct a
theory with one exception. Select the exception.
a. repetitions of experiments. b. increased observations. c. time. d. faith. e. confirmation by many scientists
Epstein-Barr virus has all of the following characteristics except.
A) is only found to infect 5% of the world's population. B) is transmitted by direct,oral contact and saliva. C) produces sudden leukocytosis. D) has a 30-50 day incubation E) can be transmitted by contaminated blood transfusions and organ transplants.
If a person inherits two X chromosomes, this individual will be
A) female. B) male. C) color-blind. D) sterile. E) a poly-X female.