Ecosystem and Energy Flow

What is the role of phosphorus in ecosystems?

• It limits productivity in oceans

• It limits productivity in freshwater ecosystems

• It is not important

• It only affects the atmosphere

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following is NOT a 1st level consumer

• grasshopper

• scorpion

• rabbit

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

If there are 1,000 kilocalories of energy available at the producer level, how much energy will be available at the 3rd consumer level

• 1 kcal

• 10 kcal

• 100 kcal

Tags

NGSS.MS-LS2-3

What is a series of events in which one organism eats another and obtains energy?

• food web

• food chain

• energy pyramid

Tags

NGSS.MS-LS2-3

What is the source of all the food in an ecosystem

• consumers

• decomposers

• producers

Tags

NGSS.MS-LS2-3

How does the amount of energy change as it moves up an energy pyramid

• it increases

• it decreases

• it stays the same

Tags

NGSS.MS-LS2-3

What breaks down biotic wastes and dead organisms and returns the raw materials to the ecosystem

• a decomposer

• a producer

• a consumer

Tags

NGSS.MS-LS2-3

What is a diagram that shows the amount of energy that move from one feeding level to another

• food web

• food chain

• energy pyramid

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following is NOT an example of a decomposer

• a mushroom

• bacteria

• a crow

Which of the following is a 2nd level consumer?

acorn-> squirrel -> owl -> mushroom

• squirrel

• owl

• mushroom