Photosynthesis powers what share of Earth's ecosystems?
A99 percent
B50 percent
C75 percent
D10 percent
Answer & Solution
Correct answer: A. 99 percent
1. A wolf eating a deer sits at the end of an energy path from the sun.
2. Photosynthesis powers 99 percent of ecosystems.
3. Heterotrophs use the stored carbohydrate energy.
_Source: OpenStax Biology 2e, Chapter 8, Photosynthesis (CC BY 4.0)._
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