What are the contributions of the following scientists to developing the Cell Theory? (Bio.lA. 2 Cell Theory) a. Schwann b. Hooke c. Schleiden d. Virchow ist the levels of organization and give an example of each from the human body. (Bio.lA.3 nulticellular organization)

Did you know that Robert Hooke was the first to coin the term "cell" in 1665? While observing cork through a microscope, he noticed tiny box-like structures that reminded him of the cells in a monastery. This was a groundbreaking moment that set the stage for understanding the building blocks of life! Another key figure, Rudolf Virchow, famously said, "Omnis cellula e cellula," meaning "every cell arises from another cell." His contributions in the mid-1800s emphasized the importance of cellular division and challenged the idea of spontaneous generation, solidifying that all cells come from pre-existing cells—an essential component of the Cell Theory! --- When we talk about levels of organization in the human body, they range from the simplest to the most complex: cells, tissues, organs, and systems. For example, a red blood cell represents the cellular level, where it performs the vital function of transporting oxygen. Moving up, groups of similar cells form tissues, like muscle tissue, which enables movement. Organs are then formed, such as the heart, which pumps blood throughout the body, while systems like the cardiovascular system work collaboratively to ensure all parts function harmoniously.