Multiple choice

While swimming Arun suffered from the irritation of skin and mucous membranes of the body. Which of the following algae causes such irritation to humans while swimming?

  1. Oscillatoria

  2. Nodularia

  3. Dictyosphaerium Anabaena

  4. Microcystis

  5. Euglena

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A Correct answer
Explanation

Oscillatoria is part of the blue-green Algae (Cyanobacteria) family. It is blue-green in colour, usually free floating, cylindrical or sometimes slightly tapering, unbranched filaments in aquatic environments. It is implicated in irritation of skin and mucous membranes suffered by people while swimming.