This NY Regents prep site provides a nice overview of what abiotic and biotic factors of an ecosystem are, as well as a brief description of carrying capacity.

This lesson will explain how a limiting factor effects the size of a population. It is 3 of 4 in the series titled "Limiting Factor."

This lesson introduces students to their task of designing a permanent guest village within the Saguaro National Park. The design must provide a true desert experience to visitors while also emphasizing sustainable design, protection of...

Students control the environments in four different scenarios to discover how any changes might affect populations. The different simulations include microorganisms, rabbits, foxes, and other organisms.

What is ecology? What is a biome? You will find the answers to these questions in this unit and also learn about the organization of the Biosphere, major Biomes of the earth and the adaptations of living things to limiting factors. It...