Question: A euglena cell has a structure called an eyespot that detects light. A paramecium does not have an eyespot, and so it cannot detect light. Why doesn't a paramecium need an eyespot?

  Options: 
 A. A paramecium does not live where there is light.
 B. A paramecium does not photosynthesize its own food.
 C. A paramecium lives in shallower water than a euglena.
 D. A paramecium uses cilia instead of a flagellum to move. 
Answer: B