5.07 Quiz: Energy Flow in Ecosystems Chapter 8

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What is the role of autotrophs in an ecosystem?

Convert solar energy into chemical energy (correct)

Obtain energy from secondary consumers

Consume primary consumers

Feed on apex predators

Why do primary consumers receive only around 10% of the energy stored by plants?

Primary consumers are inefficient in energy absorption

Energy is lost through metabolic processes and heat (correct)

They do not need as much energy

Plants reserve most of the energy for themselves

Which group of organisms gains about 1% of the energy captured by producers?

Secondary Consumers (correct)

Primary Consumers

Autotrophs

Tertiary Consumers

What is the main reason for the decrease in energy availability as you move up the trophic levels?

Energy loss due to metabolic processes and heat Signup and view all the answers

Which organisms are considered apex predators in an ecosystem?

Tertiary Consumers Signup and view all the answers

What is the primary source of energy for all organisms in an ecosystem?

Solar energy Signup and view all the answers

What is the role of decomposers in an ecosystem?

They recycle nutrients back into the ecosystem Signup and view all the answers

Which trophic level typically has the largest number of organisms?

Producers Signup and view all the answers

Which type of pyramid shows the total mass of living material at each trophic level?

Pyramid of Biomass Signup and view all the answers

What could be the potential impact of removing a hyena from a food web?

Increase in the population of primary and secondary consumers Signup and view all the answers

Which of the following is a primary consumer in a grassland ecosystem?

Impala Signup and view all the answers

What is the final product of photosynthesis?

Glucose Signup and view all the answers

Which of the following provides a more complex and realistic depiction of feeding relationships within an ecosystem?

Food web Signup and view all the answers

Which trophic level is occupied by the organisms that are least in number due to the highest energy loss?

Tertiary Consumers Signup and view all the answers

What is the role of a leopard in a grassland ecosystem?

Secondary Consumer Signup and view all the answers

What is the significance of energy pyramids in understanding ecological dynamics?

They represent energy content at each level, showing a clear and consistent decrease in energy as one moves up the pyramid Signup and view all the answers

What happens to the energy as it flows through various trophic levels in an ecosystem?

It decreases at each level. Signup and view all the answers

Which organisms form the basis of the food chain in an ecosystem by converting solar energy into chemical energy through photosynthesis?

Producers (Autotrophs) Signup and view all the answers

In an ecosystem, which group of organisms receives about 1% of the energy originally captured by the producers?

Tertiary Consumers Signup and view all the answers

What is the primary source of energy for all organisms in an ecosystem?

Solar energy from sunlight Signup and view all the answers

Which trophic level typically has organisms that consume plants to obtain energy?

Primary Consumers (Herbivores) Signup and view all the answers

What is the role of apex predators in an ecosystem's trophic structure?

To regulate the population of primary consumers Signup and view all the answers

What type of organisms are eagles and sharks in an ecosystem?

Tertiary Consumers Signup and view all the answers

How do autotrophs contribute to the energy flow in an ecosystem?

By converting solar energy into chemical energy Signup and view all the answers

Which group of organisms gains about 0.1% of the energy initially fixed by the producers?

Tertiary Consumers Signup and view all the answers

What is the main reason for the significant loss of energy as it flows through various trophic levels in an ecosystem?

Heat loss during energy transfer processes Signup and view all the answers

Which organism in a grassland ecosystem occupies the third trophic level?

Leopard Signup and view all the answers

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

Decomposers Signup and view all the answers

Which of the following best represents the relationship between trophic levels in a food chain?

A decrease in biomass and energy as you move up the trophic levels Signup and view all the answers

In a food web, if a hyena is removed, which of the following could result?

An increase in the population of secondary consumers Signup and view all the answers

Which of the following is not a type of pyramid used to represent energy flow in an ecosystem?

Pyramid of Species Signup and view all the answers

Which of the following is not a step in photosynthesis?

Sunlight + Water → Glucose + Oxygen Signup and view all the answers

Which organism in a grassland ecosystem is most likely to be affected by an increase in the population of primary consumers?

Impala Signup and view all the answers

Which of the following is a primary consumer in a grassland ecosystem?

Impala Signup and view all the answers

Which trophic level is most affected by energy loss during trophic transfer?

Tertiary Consumers Signup and view all the answers

Which of the following is not a benefit of a food web over a food chain?

Illustrates the flow of energy in a simple and linear manner Signup and view all the answers

What is the primary reason for the significant loss of energy as it flows through various trophic levels in an ecosystem?

Energy used for growth and life activities Signup and view all the answers

Which organisms typically receive about 1% of the energy originally captured by the producers in an ecosystem?

Secondary consumers Signup and view all the answers

Why do tertiary consumers, such as eagles and sharks, only gain about 0.1% of the energy initially fixed by the producers?

High metabolic losses Signup and view all the answers

Which organisms form the basis of the food chain by converting solar energy into chemical energy through photosynthesis?

Producers Signup and view all the answers

What is the role of autotrophs (producers) in an ecosystem's energy flow?

Converting solar energy into chemical energy Signup and view all the answers

Which trophic level typically has organisms that consume plants to obtain energy?

Primary consumers Signup and view all the answers

What happens to the unused energy in an ecosystem?

Converted into heat and lost Signup and view all the answers

What is the major role of decomposers in an ecosystem's energy dynamics?

Converting dead organic matter into nutrients for producers Signup and view all the answers

How do primary consumers contribute to the overall energy flow in an ecosystem?

By consuming producers and kicking off the food chain Signup and view all the answers

What process allows producers to store energy for primary consumers?

Photosynthesis Signup and view all the answers

Which trophic level has the most significant impact on a grassland ecosystem's stability?

Secondary consumers Signup and view all the answers

Which type of organism is responsible for releasing oxygen in a food chain?

Producers Signup and view all the answers

Which organism directly impacts the energy available at the secondary consumer trophic level?

Primary consumers Signup and view all the answers

Which type of pyramid best represents the relationship between trophic levels in a grassland ecosystem?

Pyramid of energy Signup and view all the answers

Which organism has the largest impact on the biomass in a grassland ecosystem?

Green plant Signup and view all the answers

Which organism plays a crucial role in nutrient recycling in a grassland ecosystem?

Bacteria Signup and view all the answers

Which organism exhibits the most complex feeding relationships in a grassland ecosystem?

Hyena Signup and view all the answers

Which organism is responsible for directly transferring energy from producers to apex predators in a grassland ecosystem?

Leopard Signup and view all the answers

Which organism is the most affected by energy loss during trophic transfer in a grassland ecosystem?

Leopard Signup and view all the answers

CH 8: Energy Flow

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Questions and Answers

What is the role of autotrophs in an ecosystem?

Why do primary consumers receive only around 10% of the energy stored by plants?

Which group of organisms gains about 1% of the energy captured by producers?

What is the main reason for the decrease in energy availability as you move up the trophic levels?

Which organisms are considered apex predators in an ecosystem?

What is the primary source of energy for all organisms in an ecosystem?

What is the role of decomposers in an ecosystem?

Which trophic level typically has the largest number of organisms?

Which type of pyramid shows the total mass of living material at each trophic level?

What could be the potential impact of removing a hyena from a food web?

Which of the following is a primary consumer in a grassland ecosystem?

What is the final product of photosynthesis?

Which of the following provides a more complex and realistic depiction of feeding relationships within an ecosystem?

Which trophic level is occupied by the organisms that are least in number due to the highest energy loss?

What is the role of a leopard in a grassland ecosystem?

What is the significance of energy pyramids in understanding ecological dynamics?

What happens to the energy as it flows through various trophic levels in an ecosystem?

Which organisms form the basis of the food chain in an ecosystem by converting solar energy into chemical energy through photosynthesis?

In an ecosystem, which group of organisms receives about 1% of the energy originally captured by the producers?

What is the primary source of energy for all organisms in an ecosystem?

Which trophic level typically has organisms that consume plants to obtain energy?

What is the role of apex predators in an ecosystem's trophic structure?

What type of organisms are eagles and sharks in an ecosystem?

How do autotrophs contribute to the energy flow in an ecosystem?

Which group of organisms gains about 0.1% of the energy initially fixed by the producers?

What is the main reason for the significant loss of energy as it flows through various trophic levels in an ecosystem?

Which organism in a grassland ecosystem occupies the third trophic level?

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

Which of the following best represents the relationship between trophic levels in a food chain?

In a food web, if a hyena is removed, which of the following could result?

Which of the following is not a type of pyramid used to represent energy flow in an ecosystem?

Which of the following is not a step in photosynthesis?

Which organism in a grassland ecosystem is most likely to be affected by an increase in the population of primary consumers?

Which of the following is a primary consumer in a grassland ecosystem?

Which trophic level is most affected by energy loss during trophic transfer?

Which of the following is not a benefit of a food web over a food chain?

What is the primary reason for the significant loss of energy as it flows through various trophic levels in an ecosystem?

Which organisms typically receive about 1% of the energy originally captured by the producers in an ecosystem?

Why do tertiary consumers, such as eagles and sharks, only gain about 0.1% of the energy initially fixed by the producers?

Which organisms form the basis of the food chain by converting solar energy into chemical energy through photosynthesis?

What is the role of autotrophs (producers) in an ecosystem's energy flow?

Which trophic level typically has organisms that consume plants to obtain energy?

What happens to the unused energy in an ecosystem?

What is the major role of decomposers in an ecosystem's energy dynamics?

How do primary consumers contribute to the overall energy flow in an ecosystem?

What process allows producers to store energy for primary consumers?

Which trophic level has the most significant impact on a grassland ecosystem's stability?

Which type of organism is responsible for releasing oxygen in a food chain?

Which organism directly impacts the energy available at the secondary consumer trophic level?

Which type of pyramid best represents the relationship between trophic levels in a grassland ecosystem?

Which organism has the largest impact on the biomass in a grassland ecosystem?

Which organism plays a crucial role in nutrient recycling in a grassland ecosystem?

Which organism exhibits the most complex feeding relationships in a grassland ecosystem?

Which organism is responsible for directly transferring energy from producers to apex predators in a grassland ecosystem?

Which organism is the most affected by energy loss during trophic transfer in a grassland ecosystem?

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