According to the food web, which food chain is correct?

plankton-blue whale- seagull- squid

plankton- krill- seagull- squid

An ecosystem is a community of organisms interacting with their physical environment. Why are decomposers an important part of ecosystems?

They break down dead organisms to return nutrients to the soil.

They produce their own food for survival.

They play a role in preventing weathering and erosion.

They provide most of the energy to consumers.

Which list describes the types of relationships the sunfish has with other marine organisms?

Seabirds: mutualism Jellyfish: predation Copepods: parasitism

Seabirds: parasitism Jellyfish: commensalism Copepods: predation

Seabirds: predation Jellyfish: mutualism Copepods: commensalism

Seabirds: commensalism Jellyfish: parasitism Copepods: mutualism

The diagram represents a simple food chain. The arrows in the diagram indicate the

direction of energy flow through a series of organisms

return of chemical substances to the environment

order of importance of the various organisms.

direction in which organisms move in the environment.

A company has purchased 15,000 acres of forest. The loggers harvest mature trees in order to supply lumber for new homes. According to the graph, the Spotted Owl and the Hawk populations are the most negatively affected organisms. What would be the most likely explanation of why this has occurred?

The owl and hawk populations have dropped because the logging has removed the places they used for their nests.

The Owl and Hawk numbers have dropped because the logging has depleted their food source.

The owl and hawk populations have dropped because of the pollution from the logging equipment.

The owl and hawk populations have dropped because they have been scared away by the presence of humans.

What does a food web represent?

All connections of energy flow throughout all organisms in a habitat.

The specific ways that mutualism is carried out.

A single pathway or energy flow between organisms.

What is the 10% rule?

The 10% rule states that only 10% of energy is transferred from one trophic level to the next in a food chain.

The 10% rule states that 10% of a population can survive in extreme conditions.

The 10% rule indicates that 10% of resources are allocated to the top management.

The 10% rule suggests that only 10% of species can coexist in an ecosystem.

ENERGY FLOW REVIEW 2025

Quiz

•

Science

•

9th - 12th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-LS2-3, MS-LS2-2, MS-LS2-1

+5

Standards-aligned

Julie Ramirez

Used 13+ times

FREE Resource

32 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?

80%

90%

10%

20%

Tags

NGSS.MS-LS2-3

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

If there is 3500 Kcal available in trophic level 1, how much energy is available in trophic level 2?

35000 Kcal

35 Kcal

350 Kcal

0.35 Kcal

Tags

NGSS.MS-LS2-3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the graph represent?

Emigration

Exponential growth

Immigration

Logistic Growth

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What level consumer could you consider the deer?

Primary

Secondary

Tertiary

Quarternary

Tags

NGSS.MS-LS2-3

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

There would be a decrease in the small bird population.

There would be a decrease in the grass/flowers population.

There would be a decrease in the mice population.

There would be an increase in the grass/flowers population.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

6.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Which of the following are density dependent factors?

competition for resources

predation

disease

natural disasters

Tags

NGSS.MS-LS2-4

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Which of the following are examples of a density independent factors?

forest fire

seasonal cycles

storms

disease

Tags

NGSS.MS-ESS3-2

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ENERGY FLOW REVIEW 2025

32 questions

In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?

If there is 3500 Kcal available in trophic level 1, how much energy is available in trophic level 2?

What does the graph represent?

What level consumer could you consider the deer?

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

Which of the following are density dependent factors?

Which of the following are examples of a density independent factors?

According to the food web, which food chain is correct?

Match the following

Match the definition to the type of consumer

Create a free account and access millions of resources

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