Mixotrophes! because they are autotrophes and heterotrophes in one :)
Valves, they are like flaps of muscle that keeps the blood in its place util its ready to be pumped along.
Answer:2000x
Explanation:The maximum resolution, or resolving power (the ability to distinguish two points) of a compound light microscope is 0.2 µm; maximum magnification is 2000x.