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the dramatic increases in crop production around the world from the second half of the twentieth century, as a result of the breeding of high-yield crops, and the wide-scale use of fertilizers and pesticides.
small fluid-filled sacs that store, transport, or digest cellular products and waste.
an infectious disease caused by the bacterium Mycobacterium tuberculosis thatusually...
tough cartilage that acts as a shock absorber between vertebrae and at the ends of bones in ball...