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Describe the 'one-way energy movement' in ecosystems.
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Energy from the Sun is absorbed by plants via photosynthesis, converted to chemical energy, and moves through organisms without returning to the Sun.
How can conservation efforts support sustainable agricultural practices?
Conservation efforts can promote sustainable practices by protecting ecosystems, enhancing biodiversity, and supporting eco-friendly methods.
Define 'Net Primary Production (NPP)' in ecosystems.
NPP is the energy produced by photosynthesis minus the energy used by plants for respiration.
What impact does deforestation have on nutrient cycles and energy flows?
Deforestation disrupts these cycles, particularly in tropical areas, leading to reduced biodiversity and potential ecosystem collapse.
What are the benefits of incorporating indigenous knowledge in land management?
Indigenous practices often promote sustainable land management, maintaining balanced ecosystems and respecting natural cycles.
Explain the role of decomposers in nutrient cycles.
Decomposers break down dead organic material, recycling nutrients back into the ecosystem for use by other organisms.
Why is NPP generally higher in tropical regions compared to higher latitudes?
Tropical regions receive more consistent sunlight and have more biodiversity, leading to higher energy capture and productivity.
What is the primary function of the biosphere?
The biosphere is the sphere of life on Earth, encompassing all ecosystems from ocean depths to heights of 8 km above the surface.
How does biodiversity contribute to ecosystem stability?
Higher biodiversity indicates a range of species that contribute to ecosystem functions such as nutrient recycling and resilience to changes.
Contrast 'slash-and-burn' practices with large-scale agriculture in terms of sustainability.
'Slash-and-burn' is a traditional, small-scale, and often sustainable practice, whereas large-scale agriculture can lead to ecosystem collapse.
Identify the key difference in nutrient cycling between tropical rainforests and boreal forests.
Tropical rainforests have rapid nutrient cycling due to warm, moist conditions, while boreal forests have slower nutrient cycles due to colder climates.
How do different biomes affect plant and animal life suitability?
The availability of nutrients, temperature, and moisture levels in different biomes determine the types of species that can thrive there.
Give an example of a biome with high biodiversity and rapid nutrient cycling.
Tropical rainforests typically have high biodiversity and rapid nutrient cycling.
What is the importance of learning about the local history and engaging with Indigenous communities in environmental conservation?
Understanding the local history and engaging with Indigenous communities helps in recognizing sustainable practices and supporting conservation efforts.
What factors contribute to the low NPP observed in small, controlled ecosystems like a fish tank?
Limited plant life and restricted space inhibit the amount of energy converted through photosynthesis, resulting in lower NPP.
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