observe the way organisms live and survive in their ecosystem by interacting with the living and nonliving components;
Standard:
5.9.B
Description:
describe the flow of energy within a food web, including the roles of the Sun, producers, consumers, and decomposers;
Standard:
5.9.C
Description:
predict the effects of changes in ecosystems caused by living organisms, including humans, such as the overpopulation of grazers or the building of highways; and
