Ecosystem Interactions and Living Organisms

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What is an ecosystem?
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An ecosystem is a community of living organisms interacting with their physical environment.
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What is a food chain?
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A food chain is a sequence that shows how energy and nutrients flow through an ecosystem from one organism to another.
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What role do producers play in an ecosystem?
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Producers, such as plants, create their own energy through photosynthesis and form the base of food chains.
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Give an example of a primary consumer.
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An example of a primary consumer is a rabbit that eats grass.
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What is a predator-prey relationship?
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It is an interaction where one organism (the predator) hunts and eats another organism (the prey).
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How do decomposers contribute to the ecosystem?
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Decomposers break down dead material, returning nutrients to the soil and maintaining the nutrient cycle.
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What is a habitat?
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A habitat is the natural environment where an organism lives.
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Define biodiversity.
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Biodiversity refers to the variety of living species in a given area, including plants, animals, fungi, and microorganisms.
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What is symbiosis?
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Symbiosis is a close relationship between two different organisms, which can be mutualistic, commensalistic, or parasitic.
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What is a keystone species?
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A keystone species is one that plays a crucial role in maintaining the structure of an ecosystem.
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How do abiotic factors affect ecosystems?
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Abiotic factors like temperature, water, and sunlight influence which organisms can survive and thrive in an ecosystem.
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What can cause an ecosystem to change?
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Changes can be caused by natural phenomena, like volcanic eruptions, or human activities, like pollution.
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What is ecological succession?
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Ecological succession is the process of change in the species structure of an ecological community over time.
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Why is energy transfer in ecosystems considered inefficient?
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Only about 10% of energy is transferred from one trophic level to the next, with the rest lost as heat.
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How do human activities impact ecosystems?
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Human activities like deforestation and pollution can lead to habitat destruction and biodiversity loss.
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