Question1. Organisms that feed only on plants are called

1. Organisms that feed only on plants are called

	detritivores
	omnivores
	carnivores
	herbivores
	decomposers

 

2. Which of the following is NOT an example of an indicator species?

	trout in water with a specifric temperature requirement
	birds that need a large forested area
	butterflies that use a specific plant as food
	frogs that take in water and air though their skin
	All are example of indicatory species

 

3. A species in an ecosystem that plays a central role in the health of that ecosystem, and whose removal may cause the collapse of the ecosystem, is called a(n)

	foundation species
	indicator species
	native species
	keystone species
	specialist species

 

4. One way that species evolve over time to reduce niche overlap is called

	competitive exclusion principle
	resource partitioning
	population distribution
	chemical warfare
	mimicry

 

5. Aerobic respiration requires

	glucose and carbon dioxide.
	glucose and oxygen.
	oxygen and water.
	carbon dioxide and water.
	carbon dioxide and oxygen.

 

6. The first law of thermodynamics tells us that

	Doing work always creates heat.
	Altering matter is the best source of energy.
	Energy cannot be recycled.
	Energy is neither created nor destroyed.
	Energy cannot be converted.

 

7. Which of the following is NOT a greenhouse gas?

	carbon monoxide
	water vapor
	carbon dioxide
	methane
	nitrous oxide

 

8. Which of the following is an example of a density dependent population control

	parasites
	predators
	infectious diseases
	competitors with high niche overlap
	all of these answers

 

9. If grass stores 1,000 energy units received from sun, the ecological efficiency of the ecosystem is 10%, and the trophic levels are grass > cow > human, how many units of energy does the human receive of the original 1,000 units?

	900
	200
	100
	10
	1

 

10. Complex feeding patters for consumers in an ecosystem are called

	food webs
	food chains
	trophic levels
	pyramids of energy
	trophic chains

11. All of the following are part of the freshwater aquatic life zones, EXCEPT

	lakes
	mangrove forests
	inland wetlands
	streams
	rivers

 

12. In terms of habitat destruction, the greatest eliminator of species is

	pollution of streams, lakes, and oceans
	destruction of coral reefs
	destruction of wetlands
	plowing of grasslands
	deforestation in tropical areas

 

13. The term malnutrition refers to people who consume

	low calories
	low carbohydrates
	too much meat
	low protein, high carbohydrate
	high protein

 

14. In lakes, the nutrient-rich water near the shore is part of the

	limnetic zone
	benthic zone
	littoral zone
	profundal zone
	abyssal zone

 

15. With the Arctic warming twice as fast as the rest of the world, which of the following organisms is rapidly moving toward threatened status?

	sea lions
	walrus
	polar bears
	seals
	arctic fox

 

16. Which of the following is an ADVANTAGEof hydropower?

	high methane emissions
	disruption of downstream aquatic ecosystems
	high-cost of energy
	large land disturbance
	large untapped potential

 

17. Even carefully designed logging roads have harmful effects, including all of the following EXCEPT

	increased erosion
	sediment runoff into waterways
	habitat fragmentation
	decrease access to farms, mines, and ranches
	loss of diversity

 

18. Organisms in this area must be able to avoid being swept away, crushed by waves, or being left high and dry at low tides, and must survive daily on seasonal salinity and temperature changes.

	estuaries
	coastal wetlands
	bathyal zone
	intertidal zone
	coral reefs

 

19. What can you do to help sustain terrestrial biodiversity? All of the following are things each of us can do, EXCEPT

	Plant trees and take care of them.
	Recycle paper and use recycled products.
	Buy sustainable wood and wood products.
	Help restore nearby degraded forests or grasslands
	Do not plant your yard with local plants

 

20. Late successional plants are largely unaffected by plants at earlier stages of succession, a factor called

	facilitation
	imperturbability
	inhibition
	tolerance
	intolerance

21. Which of the following does NOT represent kinetic energy?

	the wind blowing
	flowing water
	reservoir behind a dam
	ocean waves
	electricity

 

22. Which of the following is said to occur when one organism feeds on another organism, usually by living on or in that other organism?

	interspecific competition
	predation
	parasitism
	mutualism
	commensalism

 

23. The highest rate at which a renewable resource can be used indefinitely without reducing its available supply is called

	conservation
	sustainable yield
	preservation
	recycling
	all of these answers

 

24. Scientists classify energy as either

	chemical or physical
	kinetic or mechanical
	potential or mechanical
	potential or kinetic
	chemical or kinetic

 

25. Which of the following is NOT an abiotic factor?

	water
	potassium
	bacteria
	nitrogen
	sunlight

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