Prior to the 1600s it was believed that all living things were either plants or animals. which of these inventions led to the development of a more detailed classification system?

The invention of the microscope led to the development of a much more detailed classification system. Prior to the microscope, we believed the only life was life that we could visually see with the naked eye. However, with the invention of the microscope we were able to see that more life is contained in a small droplet of water than there are people on earth. It was eye-opening!

Spherical shaped cell might increase the surface area and decrease the volume.