Scientists use data to learn about species survival—and your classes can too! A set of four lessons guides learners through a process to draw conclusions about the fluctuations in the population of the Hellbender species. They read...

Math modeling to help endangered species? Scholars first investigate linear and exponential equations and graphs that model fictitious animal populations. They consider how key features of the graphs relate to the situation. As a final...

Examine how organisms interact through a hands-on experience. Learners study population dynamics and distribution during an informative five-lesson unit. The focus is on the ocean environment and the organisms within it.

If you teach a man to fish, he will never go hungry—or he will overfish and permanently damage the ecosystem? Address the traditional biomes as well as the human-included ecosystems and contrasts the biotic and abiotic factors in each....

[Free Registration/Login may be required to access all resource tools.] Students will identify and understand the significance of size, density and distribution in the population of organisms.

[Free Registration/Login may be required to access all resource tools.] Recognize limiting factors to the population growth and understand how the factors influence the growth in poplution.

[Free Registration/Login may be required to access all resource tools.] Check out the patterns of population growth and recognize the exponential and logistic growth similarities and differences.

[Free Registration/Login may be required to access all resource tools.] Describes how rates of birth, death, immigration, and emigration affect population growth.

[Free Registration/Login may be required to access all resource tools.] Overview of population size, density, and distribution.

[Free Registration/Login may be required to access all resource tools.] Covers different patterns of population growth.

[Free Registration/Login may be required to access all resource tools.] Discusses recent human population growth and predictions of future population growth.

[Free Registration/Login may be required to access all resource tools.] Describes how population pyramids and survivorship curves relate to population structure.

[Free Registration/Login may be required to access all resource tools.] Overview of early human population growth.

[Free Registration/Login may be required to access all resource tools.] How quickly is the human population growing? If we look at worldwide human population growth from 10,000 BCE through to today, our growth looks like exponential...

Overview of the basic concepts behind evolution, such as gene variation and adaptations.[Free Registration/Login may be required to access all resource tools.]

Students review the study of living things and make connections back to Earth's systems. This unit focuses on how various species, grouped in populations and communities, work with the nonliving things around them to ensure survival.

[Free Registration/Login may be required to access all resource tools.] A population is a group of organisms of the same species, all living in the same area and interacting with each other. Since they live together in one area, members...

[Free Registration/Login may be required to access all resource tools.] Introduction to macroevolution, microevolution, and population genetics.

[Free Registration/Login may be required to access all resource tools.] What does population growth mean? You can probably guess that it means the number of individuals in a population is increasing. The population growth rate tells you...

[Free Registration/Login may be required to access all resource tools.] For a population to be healthy, factors such as food, nutrients, water and space, must be available. Limiting factors are resources or other factors in the...

A comprehensive set of virtual experiment assignments where students explore four factors that affect the population demographics of seven countries, including population size and structure, mortality, and birth rate. Includes background...

[Free Registration/Login may be required to access all resource tools.] Discusses the four stages of demographic transition.

[Free Registration/Login may be required to access all resource tools.] Discusses the four stages of demographic transition.

[Free Registration/Login may be required to access all resource tools.] Discusses how predation affects population size and evolution.