3.1-3.4 APES

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What is a K-selected species?

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A K-selected species is one that produces fewer offspring but invests more time and resources into raising them, leading to a stable population size near the carrying capacity.

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NGSS.MS-LS1-4

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What characterizes logistic growth in populations?

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Logistic growth is characterized by an initial rapid increase in population size that slows as the population approaches its carrying capacity (K), resulting in an S-shaped curve.

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NGSS.HS-LS2-1

NGSS.HS-LS2-6

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What is exponential growth in populations?

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Exponential growth occurs when a population increases rapidly, doubling in size with each generation, typically in an environment with abundant resources.

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NGSS.HS-LS2-6

NGSS.HS-LS4-2

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What are specialists in ecology?

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Specialists are species that have a narrow ecological niche and are highly adapted to specific environmental conditions, making them vulnerable to habitat changes.

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NGSS.MS-LS2-4

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What are generalists in ecology?

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Generalists are species that can thrive in a wide variety of environmental conditions and can utilize a range of resources.

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Define carrying capacity (K).

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Carrying capacity (K) is the maximum population size that an environment can sustain indefinitely without degrading the habitat.

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What is the difference between r-selected and K-selected species?

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R-selected species produce many offspring with little parental care, while K-selected species produce fewer offspring with significant parental investment.

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NGSS.MS-LS4-4

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What is environmental resistance?

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Environmental resistance refers to the factors that limit population growth, such as food availability, predation, disease, and competition.

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

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What is the significance of the S-shaped curve in population dynamics?

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The S-shaped curve represents logistic growth, indicating that a population grows rapidly at first, then slows as it approaches the carrying capacity.

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NGSS.HS-LS2-1

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What does it mean for a species to be endangered?

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An endangered species is one that is at risk of extinction due to a rapid decrease in population size or habitat loss.