Before Video
How would you describe an ecosystem?
An ecosystem consists of a community of organisms together with their physical environment. Ecosystems can be of different sizes and can be marine, aquatic, or terrestrial. Broad categories of terrestrial ecosystems are called biomes. In ecosystems, both matter and energy are conserved.
What is an example of an ecosystem? Explain some interactions you would see in an ecosystem.
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What kinds of resources do you think plants and animals need?
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How big are ecosystems?
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Option 1
What are examples of nonliving things that ecosystems need?
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In what ways do plants and animals interact within ecosystems?ANSWER
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After Video
How are food webs used to help explain ecosystem interactions?
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How does the lizard-and-cricket example explain competition in an ecosystem?ANSWER
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Explain how an environmental factor might affect an ecosystem.
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Explain how genetic factors play a role in the survival of a population.
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Give an example of how a plant would need to compete for resources.
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Explain how an invasive species could change an ecosystem (the change could be helpful or harmful).ANSWER
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