Question

What enabled scientist to see one celled animals

Answer 1

The invention of the microscope, contributed to the discovery and accelerated research of microscopic, single cell and multi-cell organisms that are found all around our planet, this also led to our better understanding of pathogens such as germs, viruses, bacteria, fungi, parasites, and much more.   <span />

Answer 2

Use a microscope to see one-celled animals.