The Flow of Energy: Primary Production - University of Michigan
Oct 20, 2017 · You know the equation for photosynthesis from a previous lecture: ... Most of you are now familiar with the concept of the trophic level (see Figure 1). It is simply a feeding level, as often represented in a food chain or food web. Primary producers comprise the bottom trophic level, followed by primary consumers (herbivores), then secondary ...
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