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The Ecosystem: Feel the Energy Flow

The Ecosystem: Feel the Energy Flow

Assessment

Presentation

Science

7th Grade

Practice Problem

Hard

Created by

teresita moreno

FREE Resource

26 Slides • 40 Questions

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Multiple Choice

Which of the following best describes a trophic level in a food pyramid?

1

A group of organisms that share the same function in the food chain

2

A single organism at the top of the food chain

3

All plants in an ecosystem

4

All animals in an ecosystem

4

Open Ended

Why is understanding the flow of energy in an ecosystem important for maintaining balance in nature?

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VOCABULARY

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Multiple Choice

Organisms that obtain energy by consuming other organisms.

1

Producers

2

Consumers

3

Decomposers

4

Herbivores

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Multiple Choice

Which organisms are responsible for breaking down dead organic matter and recycling nutrients back into the ecosystem?

1

Producers

2

Consumers

3

Decomposers

4

Herbivores

9

Multiple Choice

Organisms that break down dead organic matter and recyle nutrients back into the ecosystem.

1

Producers

2

Consumers

3

Decomposers

4

Herbivores

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Multiple Choice

Organisms that can produce their own food, usually through the process of photosynthesis.

1

Producers

2

Consumers

3

Decomposers

4

Herbivores

11

Open Ended

What are the key differences between producers, consumers, and decomposers in an ecosystem?

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Open Ended

How do living and non-living components interact within an ecosystem to maintain balance?

14

Multiple Select

Which of the following are considered abiotic factors in an ecosystem?

1

Sunlight

2

Plants

3

Animals

4

Moisture

15

Fill in the Blank

An ecosystem is made up of both ___ and abiotic factors.

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Multiple Choice

Which of the following best describes an ecosystem?

1

A group of the same species living together

2

A community of living organisms interacting with each other and their physical environment

3

A collection of non-living things

4

A single organism and its environment

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Multiple Choice

Which of the following best describes the role of producers in an ecosystem?

1

Organisms that produce their own food, usually through photosynthesis

2

Organisms that consume other organisms for energy

3

Organisms that break down dead organic matter

4

Organisms that feed on both plants and animals

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Multiple Choice

What is the main difference between producers and consumers in an ecosystem?

1

Producers make their own food, while consumers obtain energy by eating other organisms.

2

Producers break down dead matter, while consumers recycle nutrients.

3

Producers eat both plants and animals, while consumers only eat plants.

4

Producers are always animals, while consumers are always plants.

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Multiple Choice

Which of the following animals is an example of an omnivore?

1

Lion

2

Rabbit

3

Western Gorilla

4

Caterpillar

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Multiple Select

Select all that apply: Which of the following organisms are considered decomposers?

1

Fungi

2

Bacteria

3

Cow

4

Earthworm

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Fill in the Blank

Decomposers are important in an ecosystem because they ___ dead organic matter and recycle nutrients.

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Multiple Choice

Which of the following is NOT considered an abiotic factor in an ecosystem?

1

Water

2

Soil

3

Sunlight

4

Plants

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Open Ended

Explain how energy flows through an ecosystem, starting from the sun and moving through different trophic levels.

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Multiple Select

Which of the following are required for the process of photosynthesis in producers?

1

Sunlight

2

Oxygen

3

Water

4

Carbon dioxide

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Fill in the Blank

The process of photosynthesis converts the sun's light energy into ___ energy stored in glucose molecules.

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Multiple Choice

What does the energy pyramid represent in an ecosystem?

1

The number of organisms at each trophic level

2

The flow of energy within an ecosystem

3

The types of organisms in an ecosystem

4

The amount of water at each level

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Open Ended

Describe the significance of trophic levels in an energy pyramid and how they relate to feeding relationships in an ecosystem.

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Multiple Choice

Which of the following correctly lists the order of trophic levels from the base to the top of an energy pyramid?

1

Producers → Primary consumers → Secondary consumers → Tertiary consumers

2

Tertiary consumers → Secondary consumers → Primary consumers → Producers

3

Primary consumers → Producers → Secondary consumers → Tertiary consumers

4

Producers → Secondary consumers → Primary consumers → Tertiary consumers

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Open Ended

Explain how energy flows through the different trophic levels in an energy pyramid and why the amount of available energy decreases at each successive level.

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Fill in the Blank

The broad base of the energy pyramid is formed by ___

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Multiple Select

Which of the following statements about the structure of an energy pyramid is/are correct?

1

The base of the pyramid represents producers.

2

The apex of the pyramid represents the highest-level consumers.

3

Each level of the pyramid represents a different trophic level.

4

The amount of energy increases as you move up the pyramid.

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Multiple Select

Which of the following should be included in a visual representation of energy flow in an ecosystem?

1

Sun as the primary source of energy

2

Producers such as plants and algae

3

Consumers including herbivores, carnivores, and omnivores

4

Decomposers such as fungi and bacteria

51

Open Ended

List the key components that should be included when constructing an energy flow diagram for an ecosystem.

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Assessment

55

Multiple Choice

What is the primary source of energy for most ecosystems on Earth

1

Wind

2

Sun

3

Decomposers

4

Abiotic factors

56

Multiple Choice

Which of the following organisms are able to capture the sun's energy and convert it into chemical energy?

1

Consumers

2

Decomposers

3

Producers

4

Abiotic factors

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Multiple Choice

What is the process by which producers, such as plants, use the sun's energy, carbon dioxide, and water to produce glucose and release oxygen?

1

Respiration

2

Decomposition

3

combustion

4

Photosynthesis

58

Multiple Choice

Which type of consumer feeds on both producers and other consumers?

1

Herbivore

2

Carnivore

3

Omnivore

4

Decomposer

59

Multiple Choice

Which of these is an example of a consumer in an ecosystem?

1

Grass

2

Mushroom

3

Deer

4

all of the above

60

Multiple Choice

Which of the following is an example of an abiotic factors in an ecosystem?

1

Deer

2

Soil

3

Algae

4

Fungi

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Multiple Choice

What is the role of decomposers in an ecosystem?

1

To produce their own food through photosynthesis.

2

To break down dead organic matter and recycle nutrients

3

To consume other consumers

4

To provide shelter for other organisms

62

Multiple Choice

What happens to the amount of energy available as you move up the trophic levels in an energy pyramid?

1

It increases

2

Primary consumers

3

Secondary consumers

4

Decomposers

63

Multiple Choice

How can human activities disrupt the energy flow within an ecosystem?

1

By introducing new species

2

By reducing biodiversity

3

By altering abiotic factors

4

All of the above

64

Multiple Choice

In an energy pyramid, which trophic level typically has the largest amount of energy avialble?

1

Producers

2

Primary consumers

3

Secondary consumers

4

Decomposers

65

Multiple Choice

The transfer of energy from one organism to another in an ecosystem is best understood by identifying which of the following?

1

The color of organisms

2

The trophic levels of organisms

3

The size of organisms

4

The habitat of organisms

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Open Ended

What is one question you still have about how energy flows through an ecosystem or the role of trophic levels in a food pyramid?

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