Environmental science- Populations

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What are limiting factors in an ecosystem?

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Limiting factors are resources such as food, water, sunlight, shelter, and space that restrict the growth of a population.

Tags

NGSS.MS-LS2-1

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What are Density-Independent factors?

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Density-Independent factors affect all populations similarly regardless of population size. Examples include natural disasters, rapid climate changes (drought or floods), and human activity.

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NGSS.MS-ESS3-2

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What is Biotic potential?

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Biotic potential is the maximum capacity of an organism to reproduce under optimal environmental conditions.

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NGSS.MS-LS4-4

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How long did it take for the human population to reach 1 billion?

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It took from the beginning of mankind to around 1800 for the human population to reach 1 billion.

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What is Demography?

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Demography is the scientific study of human populations, including their size, distribution, and trends.

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What is the difference between Density-Dependent and Density-Independent factors?

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Density-Dependent factors are influenced by population size (e.g., competition, predation), while Density-Independent factors affect populations regardless of size (e.g., natural disasters).

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What is carrying capacity?

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

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What is the significance of population growth rate?

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Population growth rate indicates how quickly a population is increasing or decreasing, which can impact resource availability and ecosystem health.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

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What is an ecological niche?

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An ecological niche is the role and position a species has in its environment, including all interactions with biotic and abiotic factors.

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What is the concept of ecological succession?

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