Life Diversity

Front

What is the term for when a species completely disappears from Earth?

Back

Extinction

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NGSS.MS-LS4-1

Front

What does the term 'biodiversity' refer to?

Back

The wide range of organisms that exist on Earth.

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NGSS.MS-LS2-5

Front

What are homologous structures?

Back

Structures in different species that are similar due to shared ancestry, such as a bat's wing and a whale's flipper.

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NGSS.MS-LS4-2

Front

What does the Law of Superposition state?

Back

Younger rock layers are found above older rock layers, therefore fossils found in shallower rock are most likely younger than those found below them.

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NGSS.MS-ESS1-4

Front

Which fossil is likely older: the one found in the upper layer or the one in the lower layer?

Back

The lower fossil.

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NGSS.MS-ESS1-4

Front

What is the significance of fossils in understanding Earth's history?

Back

Fossils provide evidence of past life and help scientists understand the evolution of species.

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NGSS.MS-LS4-1

Front

What is the difference between homologous and analogous structures?

Back

Homologous structures share a common ancestry, while analogous structures serve similar functions but do not share a common ancestry.

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NGSS.MS-LS4-2

Front

What is the role of natural selection in evolution?

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Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring.

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NGSS.MS-LS4-4

Front

What is an ecosystem?

Back

A community of living organisms interacting with their physical environment.

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NGSS.MS-LS2-3

Front

What is the importance of genetic variation in a population?

Back

Genetic variation increases a population's ability to adapt to changing environments.

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NGSS.MS-LS4-4