Phosphorous does NOT enter the atmosphere during the Phosphorous Cycle.

• True

• False

How many KCalories per day do producers need to provide for carnivores to reach their requirement of 6,000 KCalories?

• 60,000

• 6,000

• 600,000

• 60

Out of the three food chains, which one allows the most amount of energy to reach the top consumer?

• Top Food Chain

• Bottom Food Chain

• Middle Food Chain

• All of the Food Chains are equal

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Disease has reduced the number of foxes in this ecosystem. Which population(s) would increase as a direct result of the decrease in foxes?

• mice

• birds

• birds and rabbits

• rabbits

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What substance is being recycled in this model?

• oxygen

• carbon

• water

• nitrogen

What is happening to the DDT as it moves through the trophic levels?

• The concentration is dispersed through the trophic levels.

• The concentrations remains the same in the trophic levels.

• The concentration increases as it moves through the trophic levels.

• The concentration decreases as it moves through the trophic levels.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

An example of a biotic factor is

• soil

• air

• water

• maple tree

Tags

NGSS.MS-LS1-4

NGSS.MS-LS2-4

What nutrient does this picture depict?

• Phosphorous Cycle

• Water Cycle

• Carbon Cycle

• Nitrogen Cycle

Where does ALL energy in an ecosystem come from?

• the air

• the water

• the sun

• the soil

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What percent of energy is lost from one trophic level to the next?

• 90%

• 80%

• 10%

• 100%

Tags

NGSS.MS-LS2-3