Unit 3 Energy Transfer, Cycles, and Succession

Which kind of organism obtains energy only from producers?

• Herbivores

• Carnivores

• Omnivores

• other producers

Tags

NGSS.MS-LS2-3

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?

• 90

• 50

• 10

• 1

Tags

NGSS.MS-LS2-3

Which of the following are photosynthetic organism?

• freshwater algae

• deeply buried soil bacteria

• fungal decomposers

• intestinal bacteria

Tags

NGSS.MS-LS1-6

Consumers are organism that

• eat other organisms for energy

• use solar energy

• are also know as autotrophs

• occupy an ecosystem's lowest energy level

Tags

NGSS.MS-LS2-3

Which organism is likely to be in the bottom trophic level of a food chain?

• leopard seal

• algae

• shrimp

• killer whale

Tags

NGSS.MS-LS2-3

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

• oil

• natural gas

• coal

• phosphate salts

Which statement describes how humans are affecting the balance of carbon in the atmosphere?

• Severe drought in large areas of the world has decreased the amount of carbon dioxide that is released into the atmosphere.

• Overgrazing of grasslands has reduced the amount of carbon dioxide in the atmosphere.

• Fewer agricultural crops are planted, reducing the amount of carbon dioxide released into the atmosphere.

• Burning fossil fuels in great quantities has increased the amount of carbon dioxide in the atmosphere.

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

Plants play a crucial role in the carbon cycle because they

• have special bacteria that live in their root systems

• are chemically converted into fossil fuels when burned

• do not release carbon dioxide during cellular respiration

• allow carbon to enter an ecosystem through photosynthesis

Tags

NGSS.MS-LS1-6

The bacteria that live within the roots of a soybean plant are a critical part of the nitrogen cycle because they

• provide the plant with sugars needed for growth

• release nitrogen by decomposing dead plant parts

• change atmospheric nitrogen into usable form

• transform nitrates into nitrogen gas for release

Tags

NGSS.MS-LS2-3

Which of the following is responsible for making nitrogen in the atmosphere usable by living organisms?

• conversion of nitrogen into carbohydrates by photosynthesis

• nitrogen-fixing bacteria

• absorption of nitrogen into water systems

• decomposing bacteria