Briefly state the role microorganisms play in each of the following:
a. biological control of pests
b. recycling of elements
c. normal microbiota
d. sewage treatment
e. human insulin production
f. vaccine production
g. biofilms
Anammox reactions are
a. anaerobic and part of nitrogen cycling
b. anaerobic and part of carbon cycling
c. aerobic and part of sulfur cycling
d. aerobic and part of metal ion oxidation