Fact 1: Microscope is used to see small things by biologists by making them appear bigger.

Fact 2: Many people think that Leeuwenhoek invented the microscope.

Given the two facts above, answer the question "The device used by biologists to make small things appear bigger was invented by whom?" with the following options: 
- electricity
 - amphibians
 - animals
 - Jellyfish
 - Leeuwenhoek
 - Pasteur
 - Darwin
 - Mendel


 

     Leeuwenhoek    