Using microbes to detoxify a site contaminated with heavy metals is an example of ________.
A. immunology
B. decomposition
C. bioremediation
D. epidemiology
E. biotechnology
Answer: C
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The hemoglobin molecule ____
a. transports oxygen from the lungs to the cells of the body b. prevents sickle cell anemia when present in high enough concentrations in the blood c. is involved in amino acid metabolism d. acts as a cell surface receptor e. is controlled by a single gene
Which was a possible source of high energy on early Earth that likely contributed to the origin of life?
a. redox energy b. gamma radiation c. volcanic activity d. infrared radiation e. geothermal energy
Which of the following is NOT included in the definition of a phenotype?
a. chemicals an individual produces, such as in digesting lactose b. features visible to the naked eye, i.e. height c. all the genes an individual carries d. certain behaviors an individual exhibits e. outward appearance
A hydroxyl group is
A) also called a carbonyl group. B) characteristic of proteins. C) characteristic of alcohols. D) composed of two oxygen atoms.