Which of the following is a photosynthetic protozoan?
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Euglena
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Giardia
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Trypanosoma
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Plasmodium
A
Correct answer
Explanation
Euglena is a unique organism that exhibits characteristics of both plants and animals. It contains chlorophyll and can perform photosynthesis like plants, but it's also motile and can ingest food like animals. This dual nature makes it the classic example of a photosynthetic protozoan studied in biology.