I think you got it right
But I’m but sure
The answer is negative controls. These are groups where no phenomenon is probable. They ensure that there is no effect when there should be no effect. Where there are only two possible outcomes, e.g. positive or negative, if the treatment group and the negative control both produce a negative result, it can be concluded that the treatment had no effect. If the negative control group and the treatment group both yield a positive result, it can be inferred that a puzzling variable is involved in the occurrence under study, and the positive results are not only due to the treatment. In other examples, outcomes might be measured as lengths, times, percentages, and so forth.
Answer:
is a type of algae so therefore it should only be found in very moist or watered areas I'm thinking D
Explanation:
it makes sense
<span>The nurse needs to note the outburst, and report it to her supervisor. Although this comment seems at the surface to be an admission of guilt, perhaps there are other unseen circumstances. For example, perhaps she is blaming herself for letting the child out of her sight, and the injuries were actually caused by another while the child was out of her vigilance.</span>
