Who was the first to observe "animalcules" under the microscope? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answ a Antonie van Leeuwenhoek b Ötzi the Iceman c Marcus Terentius Varro d Robert Koch

The first to observe "animalcules" under the microscope was Antonie van Leeuwenhoek. In the late 17th century, he crafted his own microscopes and made groundbreaking discoveries about microorganisms, which he referred to as "animalcules." This observation laid the foundation for microbiology and changed our understanding of living organisms. Van Leeuwenhoek's curiosity led him to examine pond water, dental plaque, and other specimens, revealing a hidden world teeming with life. His meticulous notes and drawings of these tiny creatures sparked intrigue and further research, making him a pioneering figure in the field of science.