Enviro Fall Semester Exam

Which gas makes up 78 percent of our atmosphere but can be used by plants only when transformed by bacteria first?

• oxygen

• hydrogen

• nitrogen

• carbon dioxide

If an insect eats a plant and a bird eats the insect, about how much energy from the plant is stored in the insect for the bird to use?

• 1 percent

• 10 percent

• 50 percent

• 90 percent

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

A consumer that eats only producers is called a(n)

• autotroph

• omnivore

• carnivore

• herbivore

In the carbon cycle, where do the producers get their carbon?

• animal remains

• fossil fuels

• the atmosphere

• carbohydrates in plants

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What term is used to refer to the many feeding relationships that are possible in an ecosystem?

• energy pyramid

• food web

• energy transfer

• food chain

Tags

NGSS.MS-LS2-3

Which kind of organism obtains energy directly from the sun

• herbivores

• omnivores

• decomposers

• producers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Where are fossil fuels located?

• beneath the ocean floor

• deep within Earth

• on the surface of Earth

• all of the above

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NGSS.MS-ESS3-1

Which of the following does not contain carbon from the bodies of plants and animals that died millions of years ago?

• oil

• phosphate salts

• coal

• natural gas

The energy consumed by organisms

• can be stored in fat and sugar molecules

• undergoes magnification in food chains

• remains constant at all trophic levels

• is not partially lost during digestion

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which organism would occupy the level on an energy pyramid with the most energy?

• bobcat

• grasshopper

• carrot

• bird

Tags

NGSS.MS-LS2-3