How Can We Predict Changes in Ecosystems?

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What is an ecosystem?

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A complex system that includes living things, living together, as well as the nonliving components of their environment.

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What effect can the introduction of a top predator have on an ecosystem?

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It can create a cascade effect that reaches the bottom of the food web.

Front

True or False: Newly introduced species always cause problems in native ecosystems.

Back

False

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What is the role of sunlight in an ecosystem?

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Sunlight is energy that supports life by enabling photosynthesis.

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What did we learn from the video about food containing energy?

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The peanut burning demonstrated that food contains energy.

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Define 'top predator'.

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A top predator is an animal that has no natural enemies and is at the top of the food chain.

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What is a food web?

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A food web is a complex network of feeding relationships among organisms in an ecosystem.

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What is the difference between a food chain and a food web?

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A food chain is a linear sequence of organisms where each is eaten by the next, while a food web is a more complex network of interconnected food chains.

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What is biodiversity?

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Biodiversity refers to the variety of living organisms in a particular ecosystem.

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How can changes in an ecosystem affect biodiversity?

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Changes can lead to loss of species, which decreases biodiversity.