#Question id: 11292
#Unit 10. Ecological Principles
In an pond ecosystem the _____ is always greater than the _____ .
(a) number of primary producers . . . number of secondary consumers
(b) biomass of secondary consumers . . . biomass of primary consumer
(c) assimilation efficiency of primary consumers . . . assimilation efficiency of secondary consumers
(d) biomass of primary producers . . . biomass of primary consumers
#Question id: 11295
#Unit 10. Ecological Principles
The amount of energy entering a food chain depends on the
#Question id: 11296
#Unit 10. Ecological Principles
Which of the following statements is true?
#Question id: 11297
#Unit 10. Ecological Principles
What is the difference between gross and net primary production?
#Question id: 11298
#Unit 10. Ecological Principles
A pyramid of numbers shows _____________.
#Question id: 11299
#Unit 10. Ecological Principles
Carbon is initially incorporated into the food chain by _____________