Biology and Science teacher provide lectures to students of all ages

I have a Master's degree in Molecular Medicine and a Bachelor's degree in Microbiology and Molecular Genetics. Teaching is my passion. I want to share my experience, starting with my undergraduate studies when I observed a prepared slide under a microscope. I saw three protozoa, one of them was green and appeared to have become plump, perhaps due to its diet, while another one was constantly moving from one place to another, translucent in nature. The third protozoa simply remained stationary in its place. It was a remarkable sight, and unintentionally, I referred to them as a "tiny world." I believe this is the most fitting description for them.