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EES 100 UMaine - Exam 2 With Questions And 100% ALL CORRECT ANSWERS
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EES 100 UMaine - Exam 2 With Questions And 100% ALL CORRECT ANSWERS
Practice questions for this set
, Terms in this set (71)
What does an ecosystem consist of? biotic and abiotic components, which contribute to regulating the ecosystem
Ecosystems are both ____ and _____ Dynamic and persisting
convert energy in sunlight into chemical energy (sugars support all other organisms through food
What do primary producers do?
chain), also take (more) CO2 than they make
What is eutrophication? Excessive nutrient input into a pond/lake, causes algal blooms
What are the four types of ecosystem services? provisioning, regulating, cultural, supporting
What is a provisioning ecosystem service? Wood
What is a cultural ecosystem service? Hiking
What is a regulating ecosystem service? Clean air and water
What is a supporting ecosystem service? Biodiversity
What does homeostasis mean? Maintaining a stable internal environment
Does homeostasis mean no change? No, there is lots of change in an ecosystem in homeostasis but overall, the ecosystem is stable
What is ecosystem self-regulation driven by? Interaction of reduction and growth factors
What does species diversity improve? Ecological resilience
What does an invasive species do? Alter ecosystem homeostasis
Are natural disturbances bad for ecosystems? Not always, they help maintain homeostasis
What are the two most important developments in Bipedalism and increased brain size
human biology?
EES 100 UMaine - Exam 2
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