Which Statement About the Toxin Associated with the Red Tide

question 30

Multiple Choice

Which statement about the toxin associated with the red tide is INCORRECT?

• A) The toxin and the red tide are produced by a sudden and rapid increase in dinoflagellates.
• B) The fishing industry is adversely affected by the red tide and the toxin because it kills fish, clams, and contaminates shellfish used for human consumption.
• C) The frequency of the red tide and its geographic range has widened since the 1970s.
• D) The same toxin is produced by blooms of the blue-green bacteria and is responsible for the fishy-smell of oceans.
• E) The toxin may move up the food chain, killing or sicken any organism that eats the dinoflagellates or the contaminated shellfish.

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Definitions:

Megalith

Greek, “great stone.” A large, roughly hewn stone used in the construction of monumental prehistoric structures.

Massive Shaped Stone

Large stones that have been shaped and used in the construction of ancient structures and monuments, showcasing sophisticated engineering techniques.

Volcanic Rock

Rock formed from magma erupted from a volcano or solidified lava on the earth's surface.

Continent

One of the very large landmasses on Earth, generally identified by convention rather than any strict criteria, with seven commonly recognized: Africa, Antarctica, Asia, Europe, North America, Australia (Oceania), and South America.