Factors can positively and negatively affect the cycles of matter and the life processes of living things within an ecosystem. Disruptions to any component of an ecosystem can lead to shifts in the size and/or distribution of its populations (LS.8 b).
Lessons for this standard
No resources have been tagged as aligned with this standard.
Similar standards in other grades
An ecosystem is made up of the biotic (living) community and the abiotic (nonliving) factors that affect it. The health of an ecosystem is directly related to water quality (6.8 a).
Abiotic factors determine ecosystem type and its distribution of plants and animals, as well as the usage of land by people. Abiotic factors include water supply, topography, landforms, geology, soils, sunlight, and air quality/O2 availability (6.8 a).
Water-quality monitoring is the collection of water samples to analyze chemical and/or biological parameters. Simple parameters include pH, temperature, salinity, dissolved oxygen, turbidity, and the presence of macroinvertebrate organisms (6.8 a).
People, as well as other living organisms, are dependent upon the availability of clean water and air and a healthy environment (6.9 a, c).
identify abiotic and biotic features in the students’ local watershed (6.8 a, b)