The Ecosystem: Feel the Energy Flow

Multiple Choice

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

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

• A single organism at the top of the food chain

• All plants in an ecosystem

• All animals in an ecosystem

Open Ended

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

VOCABULARY

Multiple Choice

Organisms that obtain energy by consuming other organisms.

• Producers

• Consumers

• Decomposers

• Herbivores

Multiple Choice

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

• Producers

• Consumers

• Decomposers

• Herbivores

Multiple Choice

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

• Producers

• Consumers

• Decomposers

• Herbivores

Multiple Choice

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

• Producers

• Consumers

• Decomposers

• Herbivores

Open Ended

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

Open Ended

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

Multiple Select

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

• Sunlight

• Plants

• Animals

• Moisture

Fill in the Blank

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

Multiple Choice

Which of the following best describes an ecosystem?

• A group of the same species living together

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

• A collection of non-living things

• A single organism and its environment

Multiple Choice

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

• Organisms that produce their own food, usually through photosynthesis

• Organisms that consume other organisms for energy

• Organisms that break down dead organic matter

• Organisms that feed on both plants and animals

Multiple Choice

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

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

• Producers break down dead matter, while consumers recycle nutrients.

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

• Producers are always animals, while consumers are always plants.

Multiple Choice

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

• Lion

• Rabbit

• Western Gorilla

• Caterpillar

Multiple Select

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

• Fungi

• Bacteria

• Cow

• Earthworm

Fill in the Blank

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

Multiple Choice

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

• Water

• Soil

• Sunlight

• Plants

Open Ended

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

Multiple Select

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

• Sunlight

• Oxygen

• Water

• Carbon dioxide

Fill in the Blank

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

Multiple Choice

What does the energy pyramid represent in an ecosystem?

• The number of organisms at each trophic level

• The flow of energy within an ecosystem

• The types of organisms in an ecosystem

• The amount of water at each level

Open Ended

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

Multiple Choice

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

• Producers → Primary consumers → Secondary consumers → Tertiary consumers

• Tertiary consumers → Secondary consumers → Primary consumers → Producers

• Primary consumers → Producers → Secondary consumers → Tertiary consumers

• Producers → Secondary consumers → Primary consumers → Tertiary consumers

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.

Fill in the Blank

The broad base of the energy pyramid is formed by ___

Multiple Select

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

• The base of the pyramid represents producers.

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

• Each level of the pyramid represents a different trophic level.

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

Multiple Select

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

• Sun as the primary source of energy

• Producers such as plants and algae

• Consumers including herbivores, carnivores, and omnivores

• Decomposers such as fungi and bacteria

Open Ended

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

Assessment

Multiple Choice

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

• Wind

• Sun

• Decomposers

• Abiotic factors

Multiple Choice

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

• Consumers

• Decomposers

• Producers

• Abiotic factors

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?

• Respiration

• Decomposition

• combustion

• Photosynthesis

Multiple Choice

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

• Herbivore

• Carnivore

• Omnivore

• Decomposer

Multiple Choice

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

• Grass

• Mushroom

• Deer

• all of the above

Multiple Choice

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

• Deer

• Soil

• Algae

• Fungi

Multiple Choice

What is the role of decomposers in an ecosystem?

• To produce their own food through photosynthesis.

• To break down dead organic matter and recycle nutrients

• To consume other consumers

• To provide shelter for other organisms

Multiple Choice

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

• It increases

• Primary consumers

• Secondary consumers

• Decomposers

Multiple Choice

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

• By introducing new species

• By reducing biodiversity

• By altering abiotic factors

• All of the above

Multiple Choice

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

• Producers

• Primary consumers

• Secondary consumers

• Decomposers

Multiple Choice

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

• The color of organisms

• The trophic levels of organisms

• The size of organisms

• The habitat of organisms

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?