Wherever trees grow, sooner or later their leaves get wet. For trees in wet environments, this can be a problem if films of water cover their stomata. These tiny pores allow carbon dioxide to enter ...
Lettuce (Lactuca sativa) is a popular leafy vegetable in the daisy family. It ranges in color from yellow to dark green but may also have reddish hues. While it’s grown worldwide, China produces the ...
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