Which of these ecosystems has the lowest productivity?
A) tropical forest
B) temperate forest
C) savanna
D) open ocean
E) lakes
Correct Answer:
Verified
Q2: Biogeochemical cycles involve
A)the movement of chemicals through
Q3: What is gross primary production?
A)The carbon fixed
Q4: The replacing forests with agricultural or urban
Q5: In subarctic saltmarshes,scientists have found that the
Q6: If gross primary production were to increase
Q8: You are studying salt marsh ecosystems and
Q9: Trophic-level transfer efficiency averages about
A)1%.
B)25%.
C)33%.
D)10%.
E)0.1%.
Q10: In food webs,chain lengths
A)are long and complex.
B)have
Q11: A hectare of wheat fixes 32,000 kg
Q12: 
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