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… , a new study suggests, is displacing these important cold-water communities of algae with warm-adapted ones, a trend … the global ocean. Phytoplankton communities in warmer waters, including the tropics, tend to be dominated by … (microorganisms without a defined nucleus). Colder waters nearer the poles, however, tend to favor eukaryotes ( …

… pulling over to the side of the road to collect small weedy plants and bring them back to the lab. The weedy grass was green millet (Setaria viridis), a small …

… feasting on the compounds that plants secrete through their roots, creating a lively zone called the rhizosphere. In …