Chapter 13 Key Terms

Question 1

Bioremediation

Answer 1

the use of biological organisms to remove or detoxify pollutants from a contaminated area

Question 2

Coarse woody debris

Answer 2

logs, branches, and other woody debris in a stream

Question 3

Ecological Restoration

Answer 3

bringing a landscape back to a former condition. ecological restoration involves active manipulation of nature to recreate conditions that existed before human disturbance

Question 4

Epigenetic Effects

Answer 4

temporary changes in genetic material that affect gene expression

Question 5

Novel Ecosystem

Answer 5

a specific biological community and its physical environment interacting in an exchange of matter and energy

Question 6

Prairie Potholes

Answer 6

small ponds on the prairie

Question 7

Prescribed Burning

Answer 7

periodic fires that clean out brush and trees to maintain a prairie

Question 8

Reclamation

Answer 8

chemical, biological, or physical cleanup and reconstruction of severely contaminated or degraded sites to return them to something like their original topography and vegetation

Question 9

Wetland Mitigation

Answer 9

replacing a wetland damaged by development (roads, buildings, etc.) with a new or refurbished wetland