Which of the following groups is responsible for toxic red tides?

A. Foraminifera
B. Trypanosomes
C. Diatoms
D. Dinoflagellates


Answer: D

Biology & Microbiology

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The biome most closely associated with fire is the:

a. desert b. tropical rain forest c. chaparral d. temperate deciduous forest e. boreal forest

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In ascomycetes and basidiomycetes, plasmogamy is followed immediately by karyogamy

____________________ Indicate whether the statement is true or false.

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Potassium-40 can be used to date ________ that are ________ old

A) volcanic rocks and associated fossils; thousands of years B) volcanic rocks and associated fossils; hundreds of millions of years C) potassium-rich fossils; millions of years D) carbon-containing rocks and fossils; up to 75,000 years

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