February 27, 2017

Homework Help: ap bio

Posted by Bekah on Saturday, August 27, 2011 at 7:45pm.

The number of trophic levels that can be maintained in an ecosystem is limited by:
a. a gain in population size
b. the loss of potential energy
c. the number of individuals in the ecosystem

i have chosen a but it is for a grade and i would love some help?? :)

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