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

Fact 2: Microscopes and telescopes both use lenses.

Given the two facts above, answer the question "what are used to see small things by biologists to make them appear bigger?" with the following options: 
- mirrors
 - DNA
 - the sun
 - photons
 - an image
 - h2o
 - lenses
 - density


 

       lenses  