Part 1

Ecology Test Prep

Which level of organization is represented by the entire picture?

A. SpeciesB. CommunityC. PopulationD.Ecosystem

Which level of organization is represented by the entire picture?

A. SpeciesB. CommunityC. PopulationD.Ecosystem

In some parts of the world, rainforests are being cut down to make land available for homes, businesses, and farms. How does the loss of these trees affect the carbon cycle?

A. It causes oxygen to be added to the atmosphere.

B. It decreases the amount of carbon removed from the atmosphere.

C. It increases the amount of carbon removed from the atmosphere.

D. It decreases the amount of fossil fuels produced.

In some parts of the world, rainforests are being cut down to make land available for homes, businesses, and farms. How does the loss of these trees affect the carbon cycle?

A. It causes oxygen to be added to the atmosphere.

B. It decreases the amount of carbon removed from the atmosphere.

C. It increases the amount of carbon removed from the atmosphere.

D. It decreases the amount of fossil fuels produced.

In the diagram below, the trees contains a total of 125,000 kcal of energy. How much energy is available to the Lions?

A. 125 kcalB. 1,250 kcalC. 12,500 kcalD.125,000 kcal

In the diagram below, the trees contains a total of 125,000 kcal of energy. How much energy is available to the Lions?

A. 125 kcalB. 1,250 kcalC. 12,500 kcalD.125,000 kcal

The biome characterized by moderate temperatures with lots of precipitation and tall trees with needlelike leaves is a

A. DesertB. GrasslandC. Tropical rainforestD.Temperate rainforest

The biome characterized by moderate temperatures with lots of precipitation and tall trees with needlelike leaves is a

A. DesertB. GrasslandC. Tropical rainforestD.Temperate rainforest

Which of the following is a biotic factor in an ecosystem?

A. SunlightB. SoilC. WaterD.Bacteria

Which of the following is a biotic factor in an ecosystem?

A. SunlightB. SoilC. WaterD.Bacteria

The diagram below shows the tropic levels of a simple food web. Which trophic level has the least amount of energy?

A. ProducersB. Secondary consumersC. Tertiary consumersD.The energy level stays the same.

The diagram below shows the tropic levels of a simple food web. Which trophic level has the least amount of energy?

A. ProducersB. Secondary consumersC. Tertiary consumersD.The energy level stays the same.

The area that is located in the arctic region is BEST described as belonging to which biome?

A. DesertB. GrasslandC. Temperate rain forestD.Tundra

The area that is located in the arctic region is BEST described as belonging to which biome?

A. DesertB. GrasslandC. Temperate rain forestD.Tundra

Which of the following is an abiotic factor in an ecosystem?

A. PredatorsB. EarthquakesC. CompetitionD.Disease

Which of the following is an abiotic factor in an ecosystem?

A. PredatorsB. EarthquakesC. CompetitionD.Disease

Which series could be part of a forest food chain?

A. Squirrel Acorn Snake FoxB. Acorn Squirrel Snake FoxC. Acorn FoxSnake SquirrelD.FoxSnake Squirrel Acorn

Which series could be part of a forest food chain?

A. Squirrel Acorn Snake FoxB. Acorn Squirrel Snake FoxC. Acorn FoxSnake SquirrelD.FoxSnake Squirrel Acorn

Although nitrogen gas is abundant in the atmosphere, plants cannot use it in this form. What organism is responsible for converting nitrogen to nitrates, which the plants can use?

A. BacteriaB. InsectsC. FungiD.Viruses

Although nitrogen gas is abundant in the atmosphere, plants cannot use it in this form. What organism is responsible for converting nitrogen to nitrates, which the plants can use?

A. BacteriaB. InsectsC. FungiD.Viruses

In the drawing of the carbon cycle, what component of the cycle is labeled 1 in the drawing?

A. Fossil fuelsB. CombustionC. PhotosynthesisD.Cellular respiration

12

3

4

In the drawing of the carbon cycle, what component of the cycle is labeled 1 in the drawing?

A. Fossil fuelsB. CombustionC. PhotosynthesisD.Cellular respiration

12

3

4

Which of the following is an abiotic factor that affects plant growth?

A. Taller plantsB. BeesC. WormsD.Temperature range

Which of the following is an abiotic factor that affects plant growth?

A. Taller plantsB. BeesC. WormsD.Temperature range

Which element moves through all parts of this cycle?

A. PhosphorusB. CarbonC. OxygenD.Nitrogen

Deer

Plant protein

Waste

Decomposed matterAmmoni

a

Which element moves through all parts of this cycle?

A. PhosphorusB. CarbonC. OxygenD.Nitrogen

Deer

Plant protein

Waste

Decomposed matterAmmoni

a

The area that is located along the equator is BEST described as belonging to which biome?

A. DesertB. GrasslandC. Tropical rainforestD.Temperate rainforest

The area that is located along the equator is BEST described as belonging to which biome?

A. DesertB. GrasslandC. Tropical rainforestD.Temperate rainforest

All the communities of organisms that inhabit an area as well as the nonliving things with which they interact form

A. A populationB. A biomeC. An ecosystemD.A biosphere

All the communities of organisms that inhabit an area as well as the nonliving things with which they interact form

A. A populationB. A biomeC. An ecosystemD.A biosphere

Which of the following biotic factors affect the population of trout in a stream?

A. SunlightB. Water temperatureC. Water levelD.Predators

Which of the following biotic factors affect the population of trout in a stream?

A. SunlightB. Water temperatureC. Water levelD.Predators

Which of these BEST explains how the emission of pollutants such as carbon dioxide, sulfur dioxide, and nitrogen oxide from a factory into the air may harm organisms that live on land or in water?A. The pollutants may react with water vapor to form

acid precipitation, which harms land plants and aquatic organisms.

B. The release of carbon dioxide into the sir causes an increase in carbon dioxide levels, making photosynthesis difficult.

C. Nitrogen oxide released into the air joins with water vapor to form nitrogen-rich rain (fertilizer) that stimulates plant and algal growth.

D. Sulfur dioxide increases the growth of water plants, crowding out fish.

Which of these BEST explains how the emission of pollutants such as carbon dioxide, sulfur dioxide, and nitrogen oxide from a factory into the air may harm organisms that live on land or in water?A. The pollutants may react with water vapor to form

acid precipitation, which harms land plants and aquatic organisms.

B. The release of carbon dioxide into the sir causes an increase in carbon dioxide levels, making photosynthesis difficult.

C. Nitrogen oxide released into the air joins with water vapor to form nitrogen-rich rain (fertilizer) that stimulates plant and algal growth.

D. Sulfur dioxide increases the growth of water plants, crowding out fish.

Which sequence correctly lists the levels of organization in the biosphere from least to complex?A. Community - organism - ecosystem -

biome – populationB. Population – ecosystem – biome –

organism – communityC. Organism – population – community –

ecosystem – biomeD. Biome – ecosystem – community –

population - organism

Which sequence correctly lists the levels of organization in the biosphere from least to complex?A. Community - organism - ecosystem -

biome – populationB. Population – ecosystem – biome –

organism – communityC. Organism – population – community –

ecosystem – biomeD. Biome – ecosystem – community –

population - organism

Which of the following processes will decrease carbon dioxide concentrations in the atmosphere?

A. DecompositionB. RespirationC. PhotosynthesisD.combustion

Which of the following processes will decrease carbon dioxide concentrations in the atmosphere?

A. DecompositionB. RespirationC. PhotosynthesisD.combustion

What is missing in the ecological organization of living things sequence?

A. BiomeB. BiosphereC. CommunityD.Organ system

Organism

Population

Ecosystem

What is missing in the ecological organization of living things sequence?

A. BiomeB. BiosphereC. CommunityD.Organ system

Organism

Population

Ecosystem

The table lists four types of organisms in an ecosystem. Which of the following shows a correct food chain connecting organisms in this ecosystem?

Trophic levels for ecosystemProducers Primary

ConsumersSecondary Consumers

Decomposers

GrassOak treeAcornsDaisy

BeeCaterpillarSquirrelMouse

BirdSnakeFoxFrog

BacteriaFungi

A.Bee -> Frog -> Snake -> Bacteria

B.Acorns -> Squirrel ->Snake -> Bacteria

C.Grass -> Snake -> Mouse -> Fungi

D.Bacteria -> Fox -> Squirrel -> Acorn

The table lists four types of organisms in an ecosystem. Which of the following shows a correct food chain connecting organisms in this ecosystem?

Trophic levels for ecosystemProducers Primary

ConsumersSecondary Consumers

Decomposers

GrassOak treeAcornsDaisy

BeeCaterpillarSquirrelMouse

BirdSnakeFoxFrog

BacteriaFungi

A.Bee -> Frog -> Snake -> Bacteria

B.Acorns -> Squirrel ->Snake -> Bacteria

C.Grass -> Snake -> Mouse -> Fungi

D.Bacteria -> Fox -> Squirrel -> Acorn

Which of the following groups is most important for bringing energy into an ecosystem?A. ConsumersB. ProducersC. DecomposersD. Generalists

Which of the following groups is most important for bringing energy into an ecosystem?A. ConsumersB. ProducersC. DecomposersD. Generalists

In the carbon cycle, through what process does carbon move from an abiotic resource into organic matter?A. ImmigrationB. CombustionC. RespirationD. Photosynthesis

In the carbon cycle, through what process does carbon move from an abiotic resource into organic matter?A. ImmigrationB. CombustionC. RespirationD. Photosynthesis

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