APES Review UNITS 1 + 2

Exemplified by starlings displacing bluebirds from nesting sites

• Commensalism

• Competition

• Mutualism

• Predation

In a typical forest ecosystem, dead trees and fallen trees are most important because of their role in which of the following?

• Providing a valuable source of timber

• Providing habitats for wildlife

• Contributing to soil erosion

• Increasing water runoff

Tags

NGSS.MS-LS2-1

Which of the following biomes is best characterized as an area that forms the narrow band along the coast that experiences a range of environmental conditions (including daily changes in sunlight, temperature, and water) ?

• Open ocean

• Lakes

• Coral reefs

• Intertidal zones

Based on the diagram above, which of the following processes reduces the amount of carbon dioxide in the atmosphere?

• Photosynthesis

• Cellular Respiration

• Decomposition

• Burning of fossil fuels

Tags

NGSS.MS-LS1-6

In the nitrogen cycle illustrated above, nitrification occurs in which of the following steps?

• Step 1

• Step 2

• Step 3

• Step 4

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NGSS.MS-LS2-3

Which of the following is the best explanation for why there is such a small amount of phosphorus that moves into aquatic systems?

• Phosphorus is highly stable in the atmosphere and remains there for long periods of time.

• The amount of phosphorus in the cycle has been greatly reduced because of the use of catalytic converters in automobiles.

• There is not a gaseous phase of the phosphorus cycle, and therefore the movement of phosphorus into oceanic reservoirs is very slow.

• The phosphorus cycle occurs so rapidly that it does not exist in any one reservoir for a very long time.

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NGSS.MS-LS2-3

NGSS.MS-ESS2-1

Approximately what percent of the water on Earth is freshwater (liquid and solid)?

• 0.5%

• 2.5%

• 25%

• 75%

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NGSS.MS-ESS2-4

Which of the following best describes gross primary productivity in an ecosystem?

• Gross primary productivity is the total amount of energy captured by producers plus the energy used by consumers over time.

• Gross primary productivity is the total amount of energy captured by producers minus the energy that producers respire over time.

• Gross primary productivity is the total amount of energy lost as heat during energy transfer between trophic levels.

• Gross primary productivity is the total amount of solar energy captured by producers through photosynthesis over time.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Of the following organisms, which occupies the lowest trophic level?

• spider

• cow

• lion

• snake

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NGSS.MS-LS2-3

In a given ecosystem, producers convert solar energy into 15,000kcal of chemical energy stored in organic compounds. Which of the following is the most likely amount of energy available to secondary consumers?

• 1.5

• 150

• 15,000

• 13,500

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3