Standards with the same topic and subject but for other grades
the niche of each organism supports survival.
When excess nutrients flow into an aquatic ecosystem, a chain of events may take place which leads to a low dissolved-oxygen level in the water. This is called eutrophication (LS.8 c).
In a community, populations interact with other populations by exhibiting a variety of behaviors that aid in the survival of the population.
symbiotic relationships; and
analyze data to determine the effect of a catastrophic event on a community (LS.8 c)
infer the niche of organisms from their physical characteristics.
Each organism fills a specific role or niche in its community.
predict the effect of large-scale changes on ecosystems and communities (LS.8 c)
changes in the environment may increase or decrease population size; and
predict the environmental effects of large-scale changes, such as climate change, ocean acidification, and sea-level rise (LS.8 c).