HW - Test Review 24-25: Organisms and Environment

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What is a biotic factor?

Back

A biotic factor is a living component of an ecosystem, such as plants, animals, and microorganisms.

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What is an abiotic factor?

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An abiotic factor is a non-living component of an ecosystem, such as water, soil, temperature, and sunlight.

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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, showing how energy and nutrients flow.

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What is the role of producers in an ecosystem?

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Producers, such as plants and algae, convert sunlight into energy through photosynthesis, forming the base of the food web.

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What happens to predator populations when prey populations decrease?

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Predator populations typically decrease over time if their prey populations decline, as there is less food available.

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What is commensalism?

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

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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 predation?

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Predation is an interaction where one organism (the predator) hunts and eats another organism (the prey).

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What is the significance of decomposers in an ecosystem?

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Decomposers break down dead organic matter, recycling nutrients back into the soil and supporting new plant growth.

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What organisms are typically the first to colonize bare soil?

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Mosses and lichens are often the first organisms to colonize bare soil, helping to create conditions for other plants.