Multiple choice

Red tide is mostly caused by

  1. Noctiluca

  2. Gymnodinium

  3. Symbiodinium

  4. Nematodinium
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Red tide is a common name for a phenomenon more correctly known as an algal bloom (large concentrations ofmicroorganisms), an event in which estuarine, marine, or fresh water algae accumulate rapidly in the watercolumn and results in discoloration of the surface water. It is usually found in coastal areas. Gymnodinium is agenus of dinoflagellates

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