Multiple Choice
In Stephen Carpenter and colleagues' manipulations of lake food webs, increased densities of adult largemouth bass led to
A) increased rates of grazing on phytoplankton by zooplankton.
B) decreased rates of grazing on phytoplankton by zooplankton.
C) increased population sizes of planktivorous fish.
D) increased consumption of zooplankton by planktivorous fish.
E) no noticeable effects on food web structure.
Correct Answer:

Verified
Correct Answer:
Verified
Q4: Among lakes, primary productivity seems to be
Q5: The low productivity of arctic tundra ecosystems
Q6: The "trophic cascade hypothesis" emphasizes the role
Q7: Nitrogen stable isotopes are useful tools for
Q8: Actual evapotranspiration rates are highest in _
Q10: Experimental fertilizations in the Baltic Sea suggest
Q11: The terrestrial ecosystems with highest primary production
Q12: Bowman and his colleagues, who added nutrients
Q13: The rate of primary production on the
Q14: The major source of nutrients in surface