Phytoplankton are primary producers that live just below the ocean's surface. Why are phytoplankton important for the global environment? A Phytoplankton lower the amount of atmospheric carbon dioxide by absorbing carbon dioxide.
B
Phytoplankton increase the acidity of ocean water by absorbing carbon dioxide.
C Phytoplankton reduce the effects of fossil fuel use by using sulfur oxides.
D Phytoplankton provide a protein source for animals by converting nitrogen to nitrogen oxides.
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Study this image which statement best describes the rock shown check all that apply

Assume that you are interested in separating short (200-400 bp) dna molecules from a pool of longer molecules in the 10,000-20,000 nucleotide range. you have two recipes for making your polyacrylamide gels: one recipe uses 1.5 percent agarose and would be considered a “hard gel,” while the other uses 0.5 percent agarose and would be considered a loose gel. which gel should you use to separate the short (200-400 bp) dna molecules from a pool of longer molecules in the 10,000-20,000 nucleotide range?

Agenetically engineered corn plant is approved for agricultural use. the plant produces pollen that can make its own toxins. these toxins protect the corn plant against pests and no longer require the application of chemical pesticide. what is a likely impact on the farmer of growing such a variety of corn? a- the financial costs for the farmer would be lowered since less crops would be lost to pests. b-the financial costs for the farmer would be lowered since more crops would be lost to pests. c-the farmer may be held responsible for increasing chemical pollution. d-the farmer's expenses for pest control would increase due to an increase in bee population.