MANY ORGANISMS REDUCE HUMAN FOOD SUPPLIES
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FIGURE 7.25 Herbivorous insects, such as this corn borer, attack the above-ground parts of crop plants, while soil nematodes attack the roots of crop plants. Weeds can reduce crop production by competing with crop plants for nutrients, water, and light, while rats and many insects consume stored grains.
(Scott Camazine/Getty Images) (Science Source; Colorization by Mary Martin) (© Nigel Cattlin/Alamy) (© Joe Blossom/Alamy)