Texas Education Agency
Texas Gateway: Competition of Abiotic and Biotic Factors
This tutorial explores abiotic and biotic factors with videos and interactive activities.
Texas Education Agency
Texas Gateway: Survival of a Species
Given scenarios, illustrations or descriptions, the student will describe how long-term survival of species is dependent on changing resource bases that are limited.
CK-12 Foundation
Ck 12: Earth Science: Growth of Human Populations
[Free Registration/Login may be required to access all resource tools.] Describes how the human population is rapidly expanding.
Other
The Sustainable Scale Project: Carrying Capacity
Students study carrying capacity, a measure of sustainability within changing conditions inside ecosystems.
Sophia Learning
Sophia: Carrying Capacity: Lesson 2
This lesson will introduce the carrying capacity and show how it affects a population. It is 2 of 4 in the series titled "Carrying Capacity."
Sophia Learning
Sophia: Carrying Capacity: Lesson 3
This lesson will introduce the carrying capacity and show how it affects a population. It is 3 of 4 in the series titled "Carrying Capacity."