Is there a graph or anything we can use as a reference.
Answer:
Phase III.
Explanation:
Clinical research includes the different steps to test the particular drugs and its use for the medical treatment. Clinical research is divided into four main phases.
The phase III of the clinical research includes the double blinded study and its clinical trial on the patients. This phase determines the drug safety and efficacy. The therapeutic effect of the drug is tested directly in phase III of the clinical trial.
Thus, the answer is phase III.
A control group of the experiment is the one in which no treatment or intervention is given. So, in your case, the pea plants in which was not subjected any of the fertilizers, will serve as a control group. This is a negative control. A positive control group is the one in which an established treatment is given, which definitely leads to the production of the desired character. So, in your case, a very good well-known fertilizer which has a positive control on the growth of the pea plant, would serve as a positive control.
What was the second organism to be found here on planet Earth?
- <em>Prokaryote</em><em>s</em>
<u>The</u><u> </u><u>prokary</u><u>otes</u><u> </u><u>are</u><u> </u><u>considered</u><u> </u><u>to</u><u> </u><u>be</u><u> </u><u>the</u><u> </u><u>most</u><u> </u><u>oldest</u><u> </u><u>on</u><u> </u><u>earth</u><u>.</u><u> </u><u>The</u><u> </u><u>first</u><u> </u><u>found</u><u> </u><u>organism</u><u> </u><u>on</u><u> </u><u>earth</u><u> </u><u>was</u><u> </u><u>bacteria</u><u> </u><u>and</u><u> </u><u>then</u><u> </u><u>many</u><u> </u><u>other</u><u> </u><u>Prokaryotes</u><u> </u><u>were</u><u> </u><u>found</u><u>.</u><u>.</u><u>.</u><u>~</u>