Podcast
Questions and Answers
Which of the following is true about the energy pyramid?
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?
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?
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?
Which of the following is an example of a biogeochemical cycle?
What is the main reservoir for phosphorus?
What is the main reservoir for phosphorus?
Which human activity significantly impacts the nitrogen cycle?
Which human activity significantly impacts the nitrogen cycle?
Which nutrient is a limiting nutrient in more than a third of the world's oceans?
Which nutrient is a limiting nutrient in more than a third of the world's oceans?
What is the main reservoir of carbon in the carbon cycle?
What is the main reservoir of carbon in the carbon cycle?
Which process is involved in the nitrogen cycle?
Which process is involved in the nitrogen cycle?
What is the human impact on the phosphorus cycle?
What is the human impact on the phosphorus cycle?
What is the main reservoir of sulfur in the sulfur cycle?
What is the main reservoir of sulfur in the sulfur cycle?
What is the potential impact of providing iron to microalgae?
What is the potential impact of providing iron to microalgae?
Which is the main source of energy on Earth?
Which is the main source of energy on Earth?
What happens to energy as it moves up the trophic levels in an ecosystem?
What happens to energy as it moves up the trophic levels in an ecosystem?
What is the process by which energy is released from the consumption of other animals?
What is the process by which energy is released from the consumption of other animals?
What is the role of autotrophs in energy transfer through ecosystems?
What is the role of autotrophs in energy transfer through ecosystems?
What happens to energy during respiration at each trophic level?
What happens to energy during respiration at each trophic level?
What is the importance of the visible light spectrum in photosynthesis?
What is the importance of the visible light spectrum in photosynthesis?
Which of the following is true about energy flow in ecosystems?
Which of the following is true about energy flow in ecosystems?
Which of the following is NOT a trophic level?
Which of the following is NOT a trophic level?
Which of the following is true about the conversion of solar radiation into chemical energy by primary producers?
Which of the following is true about the conversion of solar radiation into chemical energy by primary producers?
What happens to energy as it moves up the trophic pyramid?
What happens to energy as it moves up the trophic pyramid?
Which of the following is true about the visible light spectrum for photosynthesis?
Which of the following is true about the visible light spectrum for photosynthesis?
What is the main source of energy on Earth?
What is the main source of energy on Earth?
Which of the following is true about the relationship between animal size and resting metabolic rate?
Which of the following is true about the relationship between animal size and resting metabolic rate?
Which of the following statements about larger animals is true?
Which of the following statements about larger animals is true?
What happens to the surface area relative to body mass as an animal's volume increases?
What happens to the surface area relative to body mass as an animal's volume increases?
Which of the following is true about tropical areas with high productivity?
Which of the following is true about tropical areas with high productivity?
What is the majority of biomass on Earth derived from?
What is the majority of biomass on Earth derived from?
Which of the following is an example of a biogeochemical cycle?
Which of the following is an example of a biogeochemical cycle?
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.
