Aseed company in mississippi produces genetically modified cotton seeds. what are some advantages to using genetically modified crops? a. increased crop production b. resistance to extreme weather c. resistance to pests d. all of these

it's unlikely a majority of a large population would agree on issues

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many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.