Multiple Choice
Figure 54.4 
-After looking at the experiment in the figure above,what can be said about productivity in marine ecosystems?
A) Nothing can be said based on this information.
B) Marine organisms break down iron for energy and thus for productivity.
C) Iron can be a limiting nutrient in productivity.
D) Productivity increases when chlorophyll a is added.
Correct Answer:
Verified
Correct Answer:
Verified
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