Category 4 Science Review

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What is a parasite?

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A parasite is an organism that lives in or on another organism (the host) and benefits by deriving nutrients at the host's expense.

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What is parasitism?

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Parasitism is a type of symbiotic relationship where one organism benefits at the expense of another.

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What are abiotic factors?

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Abiotic factors are the non-living components of an ecosystem, such as rocks, water, and sunlight.

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What is primary succession?

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Primary succession is the process of ecological change that occurs in an area where no soil exists, starting from bare rock.

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What is natural selection?

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Natural selection is the process by which organisms that are better adapted to their environment tend to survive and reproduce more successfully.

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What is mutualism?

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Mutualism is a symbiotic relationship where both organisms benefit from the interaction.

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What is commensalism?

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Commensalism is a type of symbiotic relationship where one organism benefits and the other is neither helped nor harmed.

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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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What is biodiversity?

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Biodiversity refers to the variety of life in a particular habitat or ecosystem, including the number of different species.

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What is a producer?

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A producer is an organism that can make its own food, typically through photosynthesis, such as plants.