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Ecology Diagnostic

Total questions: 61

Worksheet time: 31mins

Name
Class
Date
1.

What percent of Energy moves up from a lower level to a higher level?

a)

100%

b)

90%

c)

10%

d)

0%

2.

Which is an example of predation?

a)

clownfish protecting its anemone

b)

mallard eating aquatic invertebrates

c)

tick lodging in the skin of a wolf

d)

two male rams fighting for females

3.

Which is an abiotic factor?

a)

a forest of deciduous trees

b)

a polar bear on an ice flow

c)

an ocean current of cold water

d)

fungi and moss on a rotting log

4.

Which is an autotroph?

a)

algae

b)

mushroom

c)

sparrow

d)

wolf

5.

Which is a waste product of the photosynthesis process?

a)

carbon dioxide

b)

nitrogen

c)

oxygen

d)

water vapor

6.

Which organisms capture atmospheric nitrogen for the process of nitrogen fixation?

a)

animals

b)

bacteria

c)

fungi

d)

plants

7.

What is at the bottom of an Energy Pyramid?

a)

Consumers

b)

Producers

c)

Heterotrophs

d)

Omnivores

8.

Bears are an example of

a)

Carnivores

b)

Herbivores

c)

Omnivores

d)

Detritivores

9.

Worms are an example of

a)

Carnivores

b)

Herbivores

c)

Omnivores

d)

Detritivores

10.

Wolves are an example of

a)

Carnivores

b)

Herbivores

c)

Omnivores

d)

Detritivores

11.

Caribou are an example of

a)

Carnivores

b)

Herbivores

c)

Omnivores

d)

Detritivores

12.

#11 Represents

a)

Primary Consumers

b)

Secondary Consumers

c)

Tertiary Consumers

d)

Producers

13.

#12 Represents

a)

Primary Consumers

b)

Secondary Consumers

c)

Tertiary Consumers

d)

Producers

14.

#13 Represents

a)

Primary Consumers

b)

Secondary Consumers

c)

Tertiary Consumers

d)

Producers

15.

A large school of barracuda ...

a)

a biological community

b)

an ecosystem

c)

a biome

d)

a population

16.

All the conifer forests growing in Canada ...

a)

a biological community

b)

an ecosystem

c)

a biome

d)

a population

17.

All the groups of organisms that interact with each other in the same region ...

a)

a biological community

b)

an ecosystem

c)

a biome

d)

a population

18.

All the organisms and abiotic factors that interact with each other in the same region at the same time ...

a)

a biological community

b)

an ecosystem

c)

a biome

d)

a population

19.

Decomposers do what?

a)

Eat all other organisms

b)

Recycle dead organisms

c)

Eat only other decomposers

d)

Sit in the sun and do what comes naturally

20.

Autotrophs do what?

a)

Eat all other organisms

b)

Recycle dead organisms

c)

Eat only other decomposers

d)

Sit in the sun and convert carbon to sugar

21.

Consumers do what?

a)

Eat all other organisms

b)

Eat only decomposers

c)

Eat only plants

d)

Eat only animals

22.

Carnivores do what?

a)

Eat all other organisms

b)

Eat only decomposers

c)

Eat only plants

d)

Eat only animals

23.

Herbivores do what?

a)

Eat all other organisms

b)

Eat only decomposers

c)

Eat only plants

d)

Eat only animals

24.

Detritivores do what?

a)

Eat waste and dead bodies all other organisms

b)

Eat only decomposers

c)

Eat only plants

d)

Eat only animals

25.

Scavengers do what?

a)

Eat dead plants and animals

b)

Eat only dead decomposers

c)

Eat only dead plants

d)

Eat only dead animals

26.

On an Energy Pyramid, what percent of Energy moves up from a lower level to a higher level?

a)

100%

b)

90%

c)

10%

d)

0%

e)

50%

27.

At which trophic level is carbon converted to biomass?

a)

Producers

b)

Decomposers

c)

Primary Consumers

d)

Secondary Consumers

e)

Tertiary Consumers

28.

Which of the following is an example of a biotic component of an ecosystem?

a)

Water

b)

Minerals

c)

Sunlight

d)

Fungi

e)

Air

29.

Which macronutrient is required by humans in the largest amount?

a)

Calcium

b)

Nitrogen

c)

Sulfur

d)

Potassium

e)

Magnesium

30.

At which trophic level are owls who consume herbivorous mice?

a)

Producers

b)

Decomposers

c)

Primary Consumers

d)

Secondary Consumers

e)

Tertiary Consumers

31.

Roughly, what percentage of incoming solar energy is captured by autotrophs and converted into chemical energy?

a)

99

b)

80

c)

50

d)

Between 5 & 20

e)

1

32.

An ecosystem has an ecological efficiency of 10 percent. If the producer level contains 1,000 Joules of energy, how much energy does the tertiary consumer level contain?

a)

1 Joule

b)

10 Joules

c)

100 Joules

d)

1,000 Joules

e)

10,000 Joules

33.

Beginning at the lowest trophic level, arrange the following food chain found in a woodland in the correct sequence.

a)

Shrubs-deer-cougars-decomposers

b)

Shrubs-decomposers-deer-cougars

c)

Shrubs-decomposers-cougars-deer

d)

Deer-decomposers-cougars-shrubs

e)

Decomposers-cougars-shrubs-deer

34.

How is the majority of energy within an ecosystem lost?

a)

Heat loss

b)

Energy used to grow biomass

c)

Cellular Respiration

d)

Cellular Metabolism

e)

Energy used to capture prey

35.

What is the major source of phosphorus on the land?

a)

Deposition from atmospheric phosphorus

b)

Compounds that are formed by autotrophs during photosynthesis

c)

Compounds released from the weathering of rocks

d)

Compounds formed from bacterial conversion

e)

Compounds dissolved in precipitation

36.

The gross primary productivity of an ecosystem is 5 kg C/m2/year, and the energy needed by the producers for their own respiration is 1.5 kg C/m2/year. The net primary productivity of such an ecosystem would be

a)

4.5 kg C/m2/year

b)

3.0 kg C/m2/year

c)

3.5 kg C/m2/year

d)

6.0 kg C/m2/year

e)

6.5 kg C/m2/year

37.

Stream nitrate concentrations after a watershed was clear-cut, showed that stream nitrate concentrations _______

a)

Fluctuated

b)

Remained the same

c)

Decreased

d)

Increased

e)

Not enough data to determine

38.

Which substance is associated with algal blooms?

a)

Dissolved carbon dioxide

b)

Sulfur

c)

Dissolved oxygen

d)

Potassium

e)

Phosphorus

39.

After a drought, the productivity in an ecosystem returned rapidly to pre-drought conditions. This observation indicates that the ecosystem has

a)

high resilience

b)

low resilience

c)

high resistance

d)

low resistance

e)

equal resilience and resistance

40.

What law best relates to energy loss within an ecosystem?

a)

First law of thermodynamics

b)

Second law of thermodynamics

c)

Third law of thermodynamics

d)

Law of conservation of matter

e)

Law of relativity

41.

Which of the following statements best describes the concept of GPP (Gross Primary Production)?

a)

Energy captured minus energy lost

b)

Total amount of energy available from the sun

c)

Total amount of energy available within an ecosystem

d)

Total amount of cellular respiration conducted within an ecosystem

e)

Total amount of energy produced from photosynthesis

42.

What impact does deforestation have on the carbon cycle?

a)

Increase in amount of CO2 in the atmosphere

b)

Decrease in the amount of CO2 in the atmosphere

c)

Increase in the amount of photosynthesis

d)

Increase in the amount of cellular respiration performed by autotrophs

e)

Deforestation has no impact on the carbon cycle

43.

What happens during nitrogen fixation?

a)

Bacteria in the soil convert nitrate into nitrogen gas and nitrous oxide

b)

Nitrogen wastes are converted by bacteria into ammonium

c)

Organisms convert nitrogen into carbon dioxide and energy

d)

Atmospheric nitrogen diffuses into the soil and is converted into ammonia by bacteria

e)

Nitrogen is absorbed by plants

44.

What form of nitrogen is preferentially assimilated into plants?

a)

Nitrite, NO2-

b)

Ammonia, NH3

c)

Ammonium, NH4+

d)

Nitrate, NO3-

e)

Plants have no preference and can assimilate all forms of nitrogen.

45.

The cycle listed that has the most immediate effect on acid precipitation would be the

a)

Carbon cycle

b)

Sulfur cycle

c)

Water cycle

d)

Phosphorus cycle

e)

Rock cycle

46.

Which of the following is NOT a characteristic of ecosystems?

a)

Biotic Components

b)

Abiotic Components

c)

Recycling of Matter

d)

Distinct Boundaries

e)

A wide range of sizes

47.

The anticancer drug Taxol was originally extracted from the bark of the Pacific yew tree. This drug is an example of a type of ecosystem service known as

a)

cultural services

b)

support services

c)

provisions

d)

resilience

e)

regulating services

48.

Lumber, rubber, and fur would all be examples of which type of ecosystem service?

a)

cultural services

b)

support services

c)

provisions

d)

resilience

e)

regulating services

49.

The removal of excess CO2 in the atmosphere by plants would be an example of which type of ecosystem service?

a)

cultural services

b)

support services

c)

provisions

d)

resilience

e)

regulating services

50.

The established protection of natural areas that provide aesthetic beauty valued by humans would be an example of which type of ecosystem service?

a)

cultural services

b)

support services

c)

provisions

d)

resilience

e)

regulating services

51.

Combustion of fossil fuel and from other natural sources increases the concentration of

a)

NO2

b)

CO2

c)

SO2

d)

O3

e)

All are correct

52.

Which is the largest Carbon sink?

a)

Atmosphere

b)

Plants

c)

Marine sediment

d)

Coal

e)

All the water on Earth

53.

Which of the following is NOT a Greenhouse Gas (GHG)?

a)

H20

b)

CO2

c)

CH4

d)

N2O

e)

All are GHG

54.

Which of the following does NOT return Nitrogen back to the environment?

a)

Dying

b)

Breathing

c)

Sloughing

d)

Releasing Waste

e)

All release Nitrogen back to the environment

55.

Plants have a super difficult time obtaining Phosphorus, which makes Phosphorus ...

a)

an excess nutrient

b)

a restricted chemical

c)

a pollutant

d)

a limiting nutrient

e)

All of the above

56.

Sulfur is found in which macromolecule?

a)

Carbohydrates

b)

Lipids

c)

Nucleic Acids

d)

Proteins

e)

All of the above

57.

Sulfur in the atmosphere is bad because it ...

a)

can smell

b)

is a Greenhouse Gas

c)

can lead to acid rain

d)

tends to block out the sun

e)

All of the above

58.

Why do scientists use dominant plant growth forms to categorize terrestrial biomes?

a)

Plants with similar growth forms are always closely related genetically.

b)

Different plant growth forms indicate climate differences, whereas different animal forms do not.

c)

Plants from similar climates evolve different adaptations.

d)

Similar plant growth forms are found in climates with similar temperatures and amounts of precipitation

e)

Similar plant growth forms exist in terrestrial and aquatic biomes.

59.

The increased concentration of a chemical within an organism is called

a)

bioamplication

b)

bioaccumulation

c)

biomagnification

d)

biointensification

e)

biomultiplication

60.

Biomagnification of a chemical is

a)

the concentration of that chemical at the top of the food chain

b)

the concentration of that chemical at the bottom of the food chain

c)

the dilution of that chemical at the top of the food chain

d)

the dilution of that chemical at the bottom of the food chain

e)

None of the above

61.

_______ chemicals tend to be stored in organisms over a long period of time because these chemical are _______.

a)

Polar,

fat-soluble

b)

Nonpolar,

fat-soluble

c)

Polar,

water-soluble

d)

Nonpolar,

water-soluble

e)

Polar,

both fat & water soluble

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