Which of the following groups is responsible for toxic red tides?
A. Foraminifera
B. Trypanosomes
C. Diatoms
D. Dinoflagellates
Answer: D
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It would be an advantage to have the absence of petals (or reduced petals) in a plant that
distributes pollen via
a. animals. b. humans. c. water. d. wind.
The biome most closely associated with fire is the:
a. desert b. tropical rain forest c. chaparral d. temperate deciduous forest e. boreal forest
In ascomycetes and basidiomycetes, plasmogamy is followed immediately by karyogamy
____________________ Indicate whether the statement is true or false.
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