This is in the kingdom excavata.

"Euglena." Euglena. N.p., n.d. Web. 29 Oct. 2013.

http://www.fcps.edu/islandcreekes/ecology/euglena.htm

These organisms are basically have plant half animal. They can make their own food but can also eat other things. They can move around and swim. Scientist argued about which kingdom to put it in, and it's still not classified as a plant or an animal.