APES Unit 3

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What is a limiting factor?

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A limiting factor is anything or organism that regulates the size of a population of another organism.

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

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What are density-dependent factors?

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Density-dependent factors are factors that affect a population depending on its size, including food, predation, parasitism, and disease.

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NGSS.MS-LS2-4

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What is a generalist species?

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A generalist species is one that has a wide range of things in their diets as well as a relatively large area of habitat.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

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What happens when a population exceeds its carrying capacity?

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When a population grows past the ecosystem's carrying capacity, the population starts to die off to return to carrying capacity.

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What characterizes r-strategist organisms?

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R-strategist organisms typically live in unstable, unpredictable environments, reproduce rapidly (exponentially), do not take care of their young, and are subject to predation.

Tags

NGSS.MS-LS2-1

Front

What is carrying capacity?

Back

Carrying capacity is the maximum number of individuals of a species that an environment can sustainably support.

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NGSS.MS-LS2-4

Front

What are density-independent factors?

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Density-independent factors are factors that affect a population regardless of its size, such as natural disasters and climate.

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What is the difference between k-strategists and r-strategists?

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K-strategists invest more in fewer offspring and provide parental care, while r-strategists produce many offspring with little to no care.

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What is the significance of biodiversity in ecosystems?

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Biodiversity contributes to ecosystem resilience, productivity, and stability, allowing ecosystems to better withstand environmental changes.

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NGSS.MS-LS2-5

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What is ecological succession?

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Ecological succession is the process by which ecosystems change and develop over time, often following a disturbance.

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NGSS.MS-LS2-4