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.
Jerry should grab his personal respirator, quickly get a doctor's orders for the restraints, and rush to the room and restrain the patient. In texas you have to have a doctor's order before you can restrain a patient.
Answer:
i need help with this too somebody help
Explanation:
Answer:
Mass
Explanation:
The larger a star's mass, the shorter it's lifespan.
I hope this helps! ☺
