- organisms are composed of many cells. is the mistaken idea that living organisms arise from non-

Once upon a time, the concept of spontaneous generation ruled the scientific world. This was the belief that life could spontaneously emerge from non-living matter, like maggots arising from rotting meat. However, this idea was debunked in the 17th century by experiments conducted by the likes of Francesco Redi and later, Louis Pasteur, who demonstrated that life comes from existing life, leading to the establishment of the biological principle known as biogenesis. In real-world applications, understanding that organisms are made of cells has revolutionized medicine and biology. This knowledge has paved the way for advanced research in genetics, cancer treatments, and stem cell therapies. By recognizing the cellular structure and functions, scientists can target specific types of cells to develop treatments, enhancing our ability to fight diseases and improve health outcomes!