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| Least developed countries |
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Definition
| Have the highest birth rates |
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Definition
| The distribution of ages in a specific population at a certain time |
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Definition
| the movement if individuals into or out of an country |
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Definition
| the movement of people into cities from rural areas |
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Definition
| Land that can be used to farm and grow crops |
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Definition
| Average number of years a person is likely to live |
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| A model that describes how changes in a population occur |
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Definition
| Lake that has a large amount of plant growth due to nutrients which increases decomposition and decreases oxygen levels |
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| Organisms that float near the surface of waters and major producers of the ocean |
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Definition
| Marine ecosystem dominated by trees adapted to grow in shallow salt water with wide above grand roots |
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| Factor that determines where aquatic organism lives |
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| Human threat to ocean organisms |
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| Marine ecosystem dominated by Marsh grasses where rivers deposit mineral rich mud |
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Definition
| Using stinging tentacles to capture prey and secrete skeletons of Limestone |
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