Front

What is secondary succession?

Back

Secondary succession is the process of ecological recovery that occurs in an area where a disturbance has destroyed a community but left the soil intact, allowing for the re-establishment of the ecosystem.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Front

What is genetic drift?

Back

Genetic drift is a mechanism of evolution that refers to random changes in the frequency of alleles (gene variants) in a population, which can lead to significant changes over time, especially in small populations.

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NGSS.HS-LS4-2

Front

Define ecocentrism.

Back

Ecocentrism is an environmental philosophy that places intrinsic value on all living organisms and their natural environment, regardless of their utility to human beings.

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NGSS.MS-LS2-5

Front

What is the main source of variation that can lead to evolution?

Back

Mutation is the main source of genetic variation, which can introduce new traits into a population and drive evolutionary change.

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NGSS.MS-LS3-1

NGSS.MS-LS4-4

Front

What percentage of energy is available to the next level in an energy pyramid?

Back

Approximately 10% of energy is available to the next trophic level in an energy pyramid.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

What is natural selection?

Back

Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring, leading to the gradual evolution of species.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-4

Front

What is the difference between biocentrism and ecocentrism?

Back

Biocentrism places intrinsic value on all living beings, while ecocentrism values both living and nonliving elements of ecosystems.

Tags

NGSS.MS-LS2-3

Front

What role do mutations play in evolution?

Back

Mutations introduce new genetic variations into a population, which can lead to new traits that may be beneficial, neutral, or harmful, influencing the process of natural selection.

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Front

What is the significance of energy transfer in ecosystems?

Back

Energy transfer in ecosystems is significant because it determines the structure and function of food webs, influencing population dynamics and ecosystem health.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

What is anthropocentrism?

Back

Anthropocentrism is an environmental perspective that considers human beings as the central or most significant entities in the world, often prioritizing human needs over ecological health.

Tags

NGSS.MS-ESS3-4