Biogeochemical Cycles and Nutrient Limitations Quiz

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Questions and Answers

Which of the following is true about the energy pyramid?

Energy increases as it moves up the trophic levels

Energy decreases as it moves up the trophic levels (correct)

Energy remains constant at each trophic level

Energy is highest at the primary producer level

What is the main source of energy on Earth?

Air

Soil

Water

Sun (correct)

What is the term used to describe the rate at which organisms collectively synthesize organic matter?

Primary productivity (correct)

Secondary productivity

Trophic level productivity

Net primary productivity

Which of the following is an example of a biogeochemical cycle?

Water cycle Signup and view all the answers

What is the main reservoir for phosphorus?

Lithosphere Signup and view all the answers

Which human activity significantly impacts the nitrogen cycle?

Burning fossil fuels Signup and view all the answers

Which nutrient is a limiting nutrient in more than a third of the world's oceans?

Iron Signup and view all the answers

What is the main reservoir of carbon in the carbon cycle?

Oceans Signup and view all the answers

Which process is involved in the nitrogen cycle?

Nitrification Signup and view all the answers

What is the human impact on the phosphorus cycle?

Deforestation Signup and view all the answers

What is the main reservoir of sulfur in the sulfur cycle?

Rocks Signup and view all the answers

What is the potential impact of providing iron to microalgae?

Reducing carbon dioxide in the atmosphere Signup and view all the answers

Which is the main source of energy on Earth?

Radiant energy Signup and view all the answers

What happens to energy as it moves up the trophic levels in an ecosystem?

It decreases Signup and view all the answers

What is the process by which energy is released from the consumption of other animals?

Chemical bond energy release Signup and view all the answers

What is the role of autotrophs in energy transfer through ecosystems?

They convert sunlight into chemical energy Signup and view all the answers

What happens to energy during respiration at each trophic level?

It is converted to heat Signup and view all the answers

What is the importance of the visible light spectrum in photosynthesis?

It is used for photosynthesis Signup and view all the answers

Which of the following is true about energy flow in ecosystems?

Energy is lost through respiration and heat loss Signup and view all the answers

Which of the following is NOT a trophic level?

Autotroph Signup and view all the answers

Which of the following is true about the conversion of solar radiation into chemical energy by primary producers?

Only a small percentage of solar radiation is converted into chemical energy Signup and view all the answers

What happens to energy as it moves up the trophic pyramid?

Energy is lost through respiration and heat loss Signup and view all the answers

Which of the following is true about the visible light spectrum for photosynthesis?

Green light is not efficient for photosynthesis Signup and view all the answers

What is the main source of energy on Earth?

Radiant energy Signup and view all the answers

Which of the following is true about the relationship between animal size and resting metabolic rate?

Resting metabolic rate increases as mass increases Signup and view all the answers

Which of the following statements about larger animals is true?

Larger animals lose energy slower per gram than smaller animals Signup and view all the answers

What happens to the surface area relative to body mass as an animal's volume increases?

Surface area relative to body mass increases more slowly Signup and view all the answers

Which of the following is true about tropical areas with high productivity?

Tropical areas have increased species diversity Signup and view all the answers

What is the majority of biomass on Earth derived from?

Primary producers Signup and view all the answers

Which of the following is an example of a biogeochemical cycle?

Water cycle Signup and view all the answers

Study Notes

Biogeochemical Cycles and Nutrient Limitations in Ecosystems

Resting metabolic rate increases as mass increases in animals.
Larger animals lose energy slower per gram than smaller animals due to slower heat loss.
Surface area relative to body mass increases more slowly as volume increases.
Tropical areas with high productivity have increased species diversity.
Majority of biomass on Earth is from primary producers.
Nutrients and matter constantly cycle through the atmosphere, lithosphere, and hydrosphere.
Water cycle is an example of a biogeochemical cycle.
Carbon, nitrogen, phosphorus, and sulfur are important nutrient cycles.
Human activities, such as burning fossil fuels and deforestation, affect the carbon cycle.
Phosphorus is required by all organisms for DNA, membranes, and energy.
Nitrogen is a major component of amino acids and nucleic acids.
Sulfur is a component of many amino acids and proteins.

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Description

Test your knowledge on biogeochemical cycles and nutrient limitations in ecosystems with this quiz. Learn about the importance of nutrients and matter cycling through different spheres, the role of various elements like carbon, nitrogen, phosphorus, and sulfur, and how human activities impact these cycles. Explore the relationship between organism size, energy loss, and species diversity in different ecosystems. Challenge yourself with questions on resting metabolic rate, biomass distribution, and the water cycle.