The diagram is intended to show relationships in an ecosystem. What do the arrows represent?

The direction of the energy flow

The direction of population migration

Progressively smaller organisms

The diagram represents a model of a food pyramid. Which statement best describes what happens in this food pyramid?

Energy is lost to the environment at each level, so less mass can be supported at each higher level.

More organisms die at higher levels than at lower levels, resulting in less mass at higher levels.

When organisms die at higher levels, their remains sink to lower levels, increasing the mass of lower levels.

Organisms decay at each level, and thus less mass can be supported at higher levels

Which of the following statements about this food web is FALSE?

100% of the energy made by the vegetation is passed to the geese and mute swans

the ultimate source of energy for the whole food web is the radiant energy of the SUN

radiant energy from the sun is converted into chemical energy (glucose) by producers

arrows in a food web show the direction that energy moves from one trophic level to another

energy is used up by each trophic level, and ultimately lost as heat energy

Most of the energy in the trophic level below is NOT available to the organisms that eat them. Therefore, the ecosystem can only support the number of organisms that can have enough to eat. Why can the ecosystem only support small numbers of consumers compared to a large number of producers?

There is not enough energy available to support more consumers

There is too much energy available to the consumers

There is not enough food available for decomposers

There is not enough sunlight available to support more consumers

Check: Energy pyramids and Water Cycles

Quiz

•

Biology

•

9th - 12th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-LS2-3, MS-LS2-1, K-ESS3-1

Standards-aligned

Bridget Sleeper-Matzke

Used 23+ times

FREE Resource

Student preview

17 questions

Show all answers

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following is a herbivore?

cricket

frog

hawk

shrew

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What might happen if you remove a primary consumer from the ecosystem?

There would be more food for secondary consumers.

The number of primary consumers would increase.

The number of plants would increase.

The number of secondary consumers would increase.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Bears eat fish, insects, plants, seeds, nuts and young elk. They are called __________.

Franivore

Carnivore

Herbivore

Omnivore

Tags

NGSS.K-ESS3-1

NGSS.K-LS1-1

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which organism receives the least amount of energy from the producer?

Owl

Grasshopper

Lilypad

Mouse

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which level will contain autotrophs?

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which level has the most energy available?

producer

primary consumer

secondary consumer

tertiary consumer

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How much energy is available to be passed on to the next trophic level in an ecosystem?

100%

10%

50%

75%

Tags

NGSS.MS-LS2-3

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Check: Energy pyramids and Water Cycles

17 questions

Which of the following is a herbivore?

What might happen if you remove a primary consumer from the ecosystem?

Bears eat fish, insects, plants, seeds, nuts and young elk. They are called __________.

Which organism receives the least amount of energy from the producer?

Which level will contain autotrophs?

Which level has the most energy available?

How much energy is available to be passed on to the next trophic level in an ecosystem?

In this food chain, the bacteria is most likely acting as a -

The grass that the mice eat contains energy. what is the source of energy for the grass?

If a toxin. like DDT is added to the ecosystem, which organism would be most affected?

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