7th 2nd 9 weeks Science Study Guide

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What is a limiting factor in an ecosystem?

Back

A limiting factor is a condition that restricts the growth, abundance, or distribution of an organism or a population within an ecosystem. Examples include lack of water, food, or space.

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What are biotic factors in an ecosystem?

Back

Biotic factors are the living components of an ecosystem, such as plants, animals, fungi, and microorganisms that interact with each other.

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What is a nonrenewable resource?

Back

A nonrenewable resource is a natural resource that cannot be replaced or regenerated within a human timescale, such as fossil fuels, minerals, and certain groundwater.

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What is a renewable resource?

Back

A renewable resource is a natural resource that can be replenished naturally over time, such as sunlight, wind, and biomass.

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How can we conserve natural resources?

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We can conserve natural resources by using them wisely, reducing waste, recycling, and choosing sustainable options, such as walking or biking instead of driving.

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What is carrying capacity?

Back

Carrying capacity is the maximum number of individuals of a particular species that an environment can support sustainably without degrading the habitat.

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What role does sunlight play in ecosystems?

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Sunlight is a primary energy source for ecosystems, driving photosynthesis in plants, which forms the base of the food chain.

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What is the difference between abiotic and biotic factors?

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Abiotic factors are the non-living components of an ecosystem, such as water, soil, and climate, while biotic factors are the living components, such as plants and animals.

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What is an example of a renewable resource?

Back

An example of a renewable resource is solar energy, which is harnessed from sunlight and can be used repeatedly.

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Why is water considered a limiting factor?

Back

Water is considered a limiting factor because its scarcity can restrict the growth and survival of organisms in an ecosystem.