Answer:
B. The findings are not meaningful or valid because of the way she designed her study.
Explanation:
In a scientific experiment, a control group is a group of individuals/subjects that do not receive the experimental treatment. The control group is used to determine how much of an impact a treatment (in this case, cadmium intake) has on the variables being examined in the participants who are subjected to the experimental treatment. In any experiment, it is imperative to include a control group in order to validate experimental results. In this case, it is not possible to confirm that the loss of weight and abnormal hormone levels are due to cadmium uptake because only a control group would elucidate the contribution of cadmium intake on the variables being tested.
some symptoms of a heart attack could be heavy sweating, crushing chest pain radiating both arms, shortness of breath, difficulty breathing, weakness, and nausea. Some risk factors of a heart attack could be genetics, gender, age, and race.
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BAL is blood alcohol level. BAC will normally be higher in a person with more body fat. So the answer to your question would be, as body fat decreases, the increasing rate of BAL DECREASES.
People who don't get enough iodine cannot make sufficient amounts of thyroid hormone. This can cause many problems. ... Goiter, an enlarged thyroid gland, is often the first visible sign of iodine deficienc
