Populations of all species living and interacting in an area at a particular time.

Negative interaction between organisms caused by their need for a common resource. Competition may occur between individuals of the same species (intraspecific competition) or of different species (interspecific competition).

As for game but played on some for of computing device, such as a PC, a games-console like Playstation 3, Microsoft Xbox, or Nintendo GameCube.

A philosophical, epistemological, and pedagogical approach to learning, where learning is viewed as an active process in which learners construct new ideas or concepts based upon their current/past knowledge. The learner selects and transforms information, constructs hypotheses, and makes decisions, relying on a cognitive structure to do so.

A place where learners may work together and support each other as they use a variety of tools and information resources in their guided pursuit of learning goals and problem-solving activities.