SORU: cümleler sırasıyla okunduğunda anlam bütünlüğünü bozan cümleyi bulunuz
(I) Early in the 20th century, oranges and grapefruits were ripened for market in sheds equipped with kerosene stoves. (II) Before leaves fall, many of their essential elements are stored in the stem. (III) Fruit growers thought it was the heat that ripened the fruit, but when they tried newer, cleaner-burning stoves, the fruit did not ripen fast enough. (IV) Plant biologists learned later that ripening in the sheds was actually due to ethylene, a gaseous by-product of kerosene combustion. (V) We now know that plants produce their own ethylene, which functions as a hormone that triggers a variety of aging responses, including fruit ripening and programmed cell death.