Res Part 2 of Ecology Test

Which diagram best illustrates the cycling of matter and energy among organisms?

• sun → decomposers → plants → animals → larger animals

• 
  small animals → larger animals →insects → plants → sun 

• 
  sun → plants → insects → small animals → larger animals → decomposers

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NGSS.MS-LS2-3

According to the food web, what are the food sources for the Adelie penguin?

• Krill and algae

• leopard seal and crabeater seal

• algae and small animals and protists

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How does this food chain illustrate the law of conservation of energy?

• It shows that energy is destroyed by the animal in the chain.

• It shows how sunlight is converted into the energy making up organisms.

• 
  It shows how energy stored in food moves from one organism to another.

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Which of the following lists only organisms that are secondary consumers in this food web?

• snake and bird

• butterfly, goose and rabbit

• berries, flowers and leaves

• mushroom, earthworms

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NGSS.MS-LS2-3

If the organisms were organized into an energy pyramid, what percentage of available energy would be transferred from one level to the next?

• 1%

• .01%

• 100%

• 10%

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NGSS.MS-LS2-3

What would happen if the animals in the diagram were removed from the area?

• No fixed nitrogen would return to the soil.

• Less fixed nitrogen would return to the soil.

• All fixed nitrogen would return to the soil.

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How would the nitrogen cycle be disrupted if humans removed nitrogen-fixing bacteria from the soil?

• Animals would receive too much nitrogen, suffer poor health, and die

• Both plants and animals would receive nitrogen, so both would live.

• Neither plants nor animals would receive nitrogen, so both would suffer poor health and die.

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What process does carbon dioxide from the atmosphere get taken in and used by living organisms?

• combustion

• photosynthesis

• Cellular respiration

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In the carbon cycle, all animals must eat other organisms to get carbon because

• they can not absorb enough carbon from water.

• they cannot absorb carbon directly from the air.

• they are in competition with plants for available carbon

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