Ecology Review

Front

What are plants called in a food chain?

Back

Producers / Autotrophs: Organisms that produce their own food through photosynthesis and serve as a primary energy source in a food chain.

Front

What type of relationship do tapeworms have with humans?

Back

Parasitism: A relationship where one organism (the parasite) benefits at the expense of another (the host), often harming it.

Front

What is an ecosystem?

Back

An ecosystem is a community of living organisms interacting with their physical environment, such as an area of cold climate with various species.

Front

What is missing from this food chain: Grass > Grasshopper > Bird > Snake?

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Decomposer: An organism that breaks down dead or decaying organisms, recycling nutrients back into the ecosystem.

Front

What role do decomposers play in an ecosystem?

Back

Decomposers recycle nutrients by breaking down dead or decaying organisms, making nutrients available for producers.

Front

Define autotrophs.

Back

Autotrophs: Organisms that can produce their own food from inorganic substances, typically through photosynthesis.

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Define heterotrophs.

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Heterotrophs: Organisms that cannot produce their own food and must consume other organisms for energy.

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What is symbiosis?

Back

Symbiosis: A close and long-term interaction between two different species, which can be beneficial, neutral, or harmful.

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What is mutualism?

Back

Mutualism: A type of symbiotic relationship where both species benefit from the interaction.

Front

What is commensalism?

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Commensalism: A type of symbiotic relationship where one species benefits and the other is neither helped nor harmed.