Apply scientific principles of an ecosystem (Technical III.A.2)

Organization of Ecosystems

Ecosystems are organized to better understand the frame of reference in which they are being studied.

Energy Pyramid

An energy pyramid, also known as a trophic or ecological pyramid, is a graphical representation of the energy found within the trophic levels of an ecosystem.


Biotic and abiotic factors are what make up ecosystems.

Habitat vs. Niche

A habitat is the place where an organism lives while a niche is that organism’s role within that environment.

Invasive Species

An invasive species is one that is not native to its current environment and causes damage to the overall ecosystem.