Before conducting an experiment, a scientist needs to review

a. polls about public opinion

b. details about whether the experiment is important enough

c. trends involving consumers

d. results of other experiments related to the subject

D. results of other experiments related to the subject.

A literature review is necessary for a researchers to search and read, once before designing the research plan. It helps the researcher to know the process, conclusion, results, advantages and drawbacks of previous research work in the chosen subject. It makes the researcher aware about how his/her research question is appropriate and original. The results of previous studies if correctly matches with the hypothesis can be conclusive and useful for referring for current study if not than relevant precautions can be taken so, that they do not repeat in the current study.

Therefore, before conducting an experiment, a scientist needs to review the results of other experiments related to the subject.

answer: glucoamylase presented optimum activity at temperature of 55â°c, and, in the glycosidic bonds from the non-reducing ends of starch, resulting in the production of glucose. source and type of fermentation can affect the enzyme's properties

credit to kalahira

no i don't feel that humans have oversubscribed some medications