freshwater ecology
What is the primary source of freshwater on Earth?
Groundwater
Which term refers to the process of plants and animals exchanging gases with the environment?
Respiration
Which of the following is NOT a threat to freshwater ecosystems?
Deforestation
What is the main cause of eutrophication in freshwater bodies?
Excessive nutrients
Which type of organism is considered a keystone species in freshwater ecosystems?
Beaver
What is the concept of a watershed?
The area of land where all water drains to a common point
What is the role of bioindicators in freshwater ecology?
Signaling changes in water quality
Which factor contributes to the decline of freshwater biodiversity?
Habitat destruction
What is the process of sediment deposition in a river called?
Sedimentation
Which of the following is NOT a characteristic of freshwater wetlands?
High salinity