The element molybdenum (Mo) is another micronutrient that can affect primary production in the oceans. Assume that the researchers found the following results for additions of Mo:
N+P+Mo 6.0
N+P+Fe+Mo 72.0
Comparing those values to the relative uptake of 14C values in the data table, what would you conclude about molybdenum's relative importance for growth?
a. Lack of molybdenum limits primary production in this system, but only in conjunction with iron.
b. Lack of molybdenum does not limit primary production in this system.
c. Lack of molybdenum limits primary production in this system.
d. It is impossible to tell from the data provided whether the lack of molybdenum limits primary production in this system.