Ilikepizza
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- Joined
- Jun 19, 2024
- Member Type
- English Teacher
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- Chinese
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- China
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- China
As shown below, what does it mean by "cumulative" here?
- Ecologists use the term "succession" to refer to the changes that happen in plant communities and ecosystems over time. The first community in a succession is called a pioneer community, while the long-lived community at the end of succession is called a climax community. Pioneer and successional plant communities are said to change over periods from 1 to 500 years. These changes—in plant numbers and the mix of species—are【cumulative】. Climax communities themselves change but over periods of time greater than about 500 years.
cr: Reading section of TOEFL, an English proficiency test developed by ETS.
- Ecologists use the term "succession" to refer to the changes that happen in plant communities and ecosystems over time. The first community in a succession is called a pioneer community, while the long-lived community at the end of succession is called a climax community. Pioneer and successional plant communities are said to change over periods from 1 to 500 years. These changes—in plant numbers and the mix of species—are【cumulative】. Climax communities themselves change but over periods of time greater than about 500 years.
cr: Reading section of TOEFL, an English proficiency test developed by ETS.
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