Which statement regarding the scientific method is FALSE?
(a). Hypotheses are tentative explanations of observed phenomena.
(b). A hypothesis may become a theory, which may become a law.
(c). Deductive reasoning is often used in the design of an experiment.
(d). A control group is always exposed to the factor being tested.
(e). Conclusions are formed after an experiment is conducted.
(d). A control group is always exposed to the factor being tested.
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Discuss the ecological importance of the enzyme nitrogenase, the diversity and physiology of the various groups of organisms that contain it, and the strategies these organisms use to optimize conditions for the enzyme
What will be an ideal response?
Eutrophication can be caused by excess accumulation of in a body of water.
A. phosphorus B. nitrogen or phosphorous C. carbon D. nitrogen or carbon E. nitrogen
Yeast is used to make bread rise by producing ___ during fermentation.
Fill in the blank(s) with the appropriate word(s).
Due to the increase in problems with antibiotic resistance, drug companies have greatly increased their investment in antibiotic research, resulting in a record number of applications for approval of new antibiotics.
a. true b. false