You are presented with the question "Phytoplankton have a clever way of making food from what?" and the following answer choices: 
- sunlight energy
 - water energy
 - heat energy
 - heat produced
 - chemical energy
 - mechanical energy
 - organic matter
 - refraction of light

Now knowing that phytoplankton are bacteria and algae that use sunlight to make food and plants have a very clever way of using the energy from sunlight to make their food, choose the best answer.


 

 sunlight energy        