Homework answers / question archive / Terra Environmental Research Institute BIOLOGY ECOLOGY Chapter 31 Quiz 1)A keystone species is As humans continue to use fossil fuels as a primary source of energy, the amount of carbon entering the atmosphere from fossil fuel combustion will continue to increase dramatically

Terra Environmental Research Institute BIOLOGY ECOLOGY Chapter 31 Quiz 1)A keystone species is As humans continue to use fossil fuels as a primary source of energy, the amount of carbon entering the atmosphere from fossil fuel combustion will continue to increase dramatically

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3. In an aquatic ecosystem, the aquatic plants are eaten by small invertebrates that in turn are eaten by crayfish, which are eaten by fish, which are then eaten by ducks. Based on this, which of the following is incorrectly matched?
4. On average, what percentage of the energy in one trophic level becomes incorporated into the next higher trophic level?