Population:
All the individuals of one species in a given area.
Individual:
A single organism.
Ecosystem:
A system involving the interactions between a community of living organisms in a particular area and its nonliving environment.
Community:
A group of organisms or populations living and interacting withone another in a particular environment.
Work cited
"Animal Farms Are Pumping up Superbugs." International Business Times. Web. 22 Apr. 2012. <http://www.ibtimes.com/articles/67393/20100930/infection-antibiotics.htm>.
"Casio Exilim EZ-Z1000 Sample Picture of Bee and Flower." About.com Digital Cameras. Web. 22 Apr. 2012. <http://cameras.about.com/od/camerasamplepictures/ig/Casio-Exilim-Camera-Pictures/Casio-Exilim-EZ-Z1000-Picture.htm>.
