8th Grade Life Science

Ecology

2. In all environments -- freshwater, marine, forest, desert, grassland, mountain, and others -- organisms with similar needs may compete with one another for resources, including food, space, water, air, and shelter (together referred to as "habitat"). In any particular environment, the growth and survival of organisms commonly depend on the quality and quantity of the habitat. Other determining factors include predation, parasitism, etc. (AKSci - A.9, A.14a, A.14c)

Examples of What Students Should Be Able to Do:

• Construct and interpret graphs (bar, line, pie histogram) from data illustrating the correlation between a population in an ecosystem and a biotic or abiotic factor.