Arsenic is a common hazardous waste that can contaminate soil and water surrounding smelting facilities. A bioprocess has been developed using naturally occurring bacteria that can remove the arsenic. This process is an example of:
A. Genetic engineering
B. Bioremediation
C. Nitrogen fixation
D. Fermentation
Ans: B. Bioremediation
You might also like to view...
Which of the following bacteria lack a cell wall?
A. Treponema pallidum B. Mycobacterium tuberculosis C. Staphylococcus aureus D. Mycoplasma pneumoniae
Reactions that use the equivalent of a water molecule to break a molecule into smaller subunits are
called ____ reactions.
a. equilibrium b. hydration c. hydrolysis d. redox e. dehydration synthesis
The gene frequencies of a population can be expected to change if
A. the population is small. B. no mutation occurs. C. no migration occurs into or out of the population. D. random mating occurs.
Which sequence represents the most typical order of events in seed germination?
a. shoot cells divide and elongate ? root cells divide and elongate ? seed coat splits ? water imbibition b. seed coat splits ? water imbibition ? root cells divide and elongate ? shoot cells divide and elongate c. water imbibition ? seed coat splits ? root cells divide and elongate ? shoot cells divide and elongate d. water imbibition ? root