This modeling sequence allows students to explore how factors, both environmental and otherwise, can affect the relationships within an ecosystem through changes in population size.
Develop a model to describe the movement of matter among plants, animals, decomposers, and the environment.
Analyze and interpret data to provide evidence for the effects of resource availability on organisms and populations of organisms in an ecosystem.
Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.
Construct an argument supported by empirical evidence that changes to physical or biological components of an ecosystem affect populations.