Multiple choice

Which of the following includes all autotrophic organisms?

  1. Green plants and all the bacteria

  2. Green plants and sulphur bacteria

  3. Bacteria and virus

  4. Fungi and Archaea
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Photosynthesis is a process that converts carbon dioxide into organic compounds, especially sugars, using the energy from sunlight. Photosynthesis occurs in plants, algae, and sulphur bacteria, but not in archaea. Photosynthetic organisms are called autotrophs, since they can create their own food.

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