Fact 1: Phytoplankton are bacteria and algae that use sunlight to make food.

Fact 2: Plants have a very clever way of using the energy from sunlight to make their food.

Given the two facts above, answer the question "Phytoplankton have a clever way of making food from what?" with the following options: 
- sunlight energy
 - water energy
 - heat energy
 - heat produced
 - chemical energy
 - mechanical energy
 - organic matter
 - refraction of light


 

 sunlight energy        