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

Fact 2: Biologists study living creatures.

Given the two facts above, answer the question "What makes living creatures appear bigger?" with the following options: 
- fur and fat
 - xrays
 - squids
 - microscopes
 - deuterostomes
 - hearing
 - screen
 - mutations


 

    microscopes     