Cyanobacteria are_in nature.
Correct answer: A. Autotroph
- A. Autotroph
- B. Heterotroph
- C. Decomposer
- D. None
Explanation
The correct answer is: a) Autotroph.Cyanobacteria are classified as autotrophs because they have the capability to produce their own food through photosynthesis. They utilize sunlight to convert carbon dioxide and water into glucose and oxygen, acting as primary producers in their ecosystems. This distinguishes them from heterotrophs, which depend on other organisms for organic material, and decomposers, which break down dead organic matter. Option D is incorrect because cyanobacteria indeed have a defined mode of nutrition as autotrophs.
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