The correct answer is B.
There's no statically significant association between the exposure and the disease. The risk ratio does not follow the normal distribution, even it does not depend on sample size in comparison groups. The natural rr is approximately normally distributed and is used to produce confidence interval which is for the relative risk.
Answer:
The major functions of the circulatory system is it delievers oxygen and nutrients to cells and takes away wastes.
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Answer:
The Species Survival Plans are supposed to to help ensure the survival of selected species in zoos and aquariums, most of which are threatened or endangered in the wild.
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Answer:
The testes are two oval-shaped male reproductive glands that produce sperm and the hormone testosterone.
