I dont really understand where someone would get this information. was there a document or article you were supposed to read before this if so that would be very helpful.
Prostist are eukaryotic, unicellular, and heterotrophic
Answer:
Grain, species etc..
Explanation:
They were originally used to grind grain or spices or pump water and sawing wood. Now modern windmills are used for electricity.
Tha answer is radiant energy