Question

Which of the following is true about the Red sea and red tide?

• A. Red tides occur in red sea.
• B. Associated with cyanobacteria and protist respectively.
• C. One is by virus and other by bacteria.
• D. Associated with Rhodophyceae and diatoms respectively.

Answer 1

The correct option is B

Associated with cyanobacteria and protist respectively.

Red Sea got its name because of a type of blue-green algae called Trichodesmium erythraeum, which is found in the sea. When these blooms of algae die off they appear to turn the blue-green color of the ocean to a reddish-brown. Red tides are associated with protists called dinoflagellates.