The binomial system of nomenclature for microorganisms utilizes
a. the genus and species modifier.
b. the order and species modifier.
c. the kingdom and genus names.
d. the family and order names.
e. the order and genus names.

The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis