What are the two most important nutrients affecting production in aquatic ecosystems?
A) oxygen and hydrogen
B) carbon and oxygen
C) carbon and iron
D) nitrogen and phosphorus
E) carbon and calcium
Correct Answer:
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Q9: Gross Primary Production =
A) Net Primary Production
B)
Q10: In subarctic saltmarshes, the addition of phosphorus
Q11: The total biomass in an ecosystem at
Q12: Primary production is generally highest in
A) taiga.
B)
Q13: In which of the following is primary
Q15: Annual net primary productivity
A) is equal on
Q16: Net productivity can be measured as
A) numbers
Q17: The giant interconnected global ecosystem is called
Q18: What is the current concentration of carbon
Q19: Stilling and Drake have conducted experiments about
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