Multiple choice

The ultimate energy source of ecosystem is:

  1. solar energy

  2. biomass

  3. producer

  4. carbohydrates

  5. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Solar energy powers photosynthesis in producers, which forms the base of food chains. Biomass, producers, and carbohydrates all derive their energy from the sun ultimately.

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