Ecology and the Environment Quiz 3

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1. The ________ is the area of the planet where water movement and storage occurs.

	a.	liquidosphere
	b.	waterway
	c.	hydrosphere

 

2. Excess ________ in aquatic ecosystems is responsible for dead zones.

	a.	carbon and hydrogen
	b.	sulfur
	c.	phosphorus and nitrogen

 

3. Minerals are cycled from land to water by rain and ________.

	a.	sublimation
	b.	surface runoff
	c.	subsurface water flow

 

4. climate evidence shows that since the Industrial Revolution, atmospheric ________ levels have steadily increased from the historically highest levels.

	a.	carbon dioxide
	b.	oxygen
	c.	water

 

5. The Permian extinction is directly linked with ________.

	a.	global warming
	b.	a cataclysmic asteroid
	c.	several possible causes

 

6. Humans impact from agricultural practices is often much larger in ________ regions.

	a.	wet
	b.	all regions
	c.	dry

7. ______ is one method for recognizing existing biodiversity.

	a.	Species counts
	b.	Examining museum specimens
	c.	DNA barcoding

 

 

8. Habitat restoration can restore and maintain ________.

	a.	endemic species
	b.	biodiversity
	c.	the global climate

 

 

9. A microcosm ________.

	a.	re-creates an ecosystem in a controlled environment
	b.	represents the whole of a complex structure, such as the biosphere
	c.	partitions a part of a natural ecosystem for experimentation

 

 

Answer B

11. in aquatic ecosystems is responsible for dead zones.

 

 

 

12. _diversity is the raw material that generates adaptation in species.
13.          Genetic
14. Ecosystem
15. General
16. A(n) ____ is composed of both biotic and abiotic components.
17.          ecosystem
18. lithosphere
19. community
20. Stratification is the process by which a freshwater lake develops ____.
21.          different sediment layers
22. distinct species distributions
23. layers of different temperatures

 

15. Distinctive species can often be found in ____.
16.          high stress environments
17. physically small regions
18. physically isolated geographies

 

16. species can often be found in physically isolated geographies.