The density of water is greatest at
A) -4°C.
B) 0°C.
C) 4°C.
D) 100°C.
C
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Which of the following statements regarding the algal sister groups of land plants is not correct?
A. Their dispersal phase is in the water. B. They have diploid and haploid stages in their life cycle. C. Fertilization requires water. D. Their dominant, multicellular form is haploid. E. Their dispersal phase can be in the water or in the air.
The bipolar spindle is composed of __________. Fill in the blank(s) with the appropriate word(s)
Craving alcohol and an inability to limit the amount of alcohol one consumes are symptoms of fetal alcohol syndrome.
Indicate whether the statement is true or false
Researchers Tilman and Downing have demonstrated which of the following?
A) more stable biomass production during drought in high-diversity systems B) more stable biomass production during winter in high-diversity systems C) more stable biomass production under fertilization in high-diversity systems D) more stable biomass production under pesticide application in high-diversity systems