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What is usually responsible for a harmful algal bloom?


A) Diatoms
B) Viruses
C) Cyanobactiera
D) Dinoflagellates

E) B) and D)
F) A) and B)

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Compare and contrast two of the three phytoplankton discussed at length in this chapter (Diatoms, Dinoflagellates, and Coccolithophores).

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There are plankton in every major group of animals.

A) True
B) False

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Why are phytoplankton vital for life on Earth to thrive? How many categories of phytoplankton are there?

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Why is photosynthesis inhibited at the very top layer of the ocean surface?


A) The salinity is too low
B) There is too much light
C) There are pollutants in the water
D) There are too many plankton in the water

E) A) and C)
F) B) and C)

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After a plankton bloom, nonconservative nutrients are produced in high levels.

A) True
B) False

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What is essential in the restoration and continuation of photosynthetic productivity in the ocean?


A) Upwelling
B) Blooming
C) Light
D) Carbon dioxide

E) A) and B)
F) None of the above

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Picoplankton number 100 million individuals in a liter of seawater at all depths in the ocean.

A) True
B) False

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What is required to study very small plankton?


A) Plankton net
B) Specialized light intensity
C) Filtration
D) Cyanobacteria

E) A) and C)
F) None of the above

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What is plankton?


A) Any photosynthetic organism
B) An internal organism
C) A drifting organism
D) Microscopic organism

E) All of the above
F) B) and D)

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