What was the major discovery that questioned the idea that mature is organized from the bottom up

answer: i cant find your answer. do u have another way i can answer it for you : )

explanation:

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

garbage disposal because lysosomes dispose of old cell parts like garbage disposals dispose of old food.