KAITLIN HAS A POSITIVE CONNOTATION IM NOT SURE IF THAT IS THE ANSWER YOU WANT THOUGH? IS IT
Answer:
Control
Explanation:
In a study of whether a drug might help reduce depression, research participants were assigned to take the drug or a placebo. Those who took the placebo were in the control condition.
In an experiment, the control group are not given the treatment material (drugs in this case). This is to have a basis for comparison of results of the study.
A placebo drug is manufactured not to have any treatment effect on the subjects.
Carbon and nitrogen are examples of nutrients. Unlikeenergy<span>, </span>matter<span> is recycled in </span>ecosystems<span>. In the figure below, you can see how (Figure below). Decomposers release nutrients when they break down dead organisms.</span>
The black plague killed one 3rd of all europeans.
