Autotrophs a. consume their food to get energy b. may use photosynthesis to gain energy c. are also called consumers d. cannot use solar energy

B.

They are plants, and do not consume other organisms for energy. Therefore, they must produce their own energy using the sun through photosynthesis.

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.