How do conflicts and the cost of agricultural inputs affect food and water availability, and what sustainable methods can address these challenges?

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What role do new pests, pathogens, and environmental changes play in threatening food security?

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How do changing diets in developed countries affect food resources and their global distribution?

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How does the increasing birth rate impact food security in some countries?

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What is food security, and what biological factors can threaten it?

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How does the loss of biomass at each trophic level affect the number of organisms in a food chain or ecosystem?

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How can the efficiency of biomass transfer between trophic levels be calculated, and what factors influence these calculations?

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What are the key reasons for biomass loss between trophic levels, such as incomplete absorption, waste production, and respiration?

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Why is only about 10% of the biomass transferred from one trophic level to the next?

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What is a pyramid of biomass, and how does it visually represent the amount of biomass at each trophic level in an ecosystem?

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