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| the study of the interactions of living organisms with one another and with their physical environment (soil, water, climate, and so on). |
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| the place where a particular population of a species lives |
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| The many different species that live together in a habitat |
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| also known as the ecological system, consist of a community and all the physical aspects of its habitat, such as soil. |
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| the physical aspects of a habitat |
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| the organisms in a habitat |
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| The variety of organisms, their genetic differences, and the communities and ecosystems in which they occur. |
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| The firsts organisms to live in a new habitat where the soil is present tend to be small, first-growing plant. |
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| A somewhat regular progression of species replacement |
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| Succession that occurs where life has not existed before |
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| Succession that occurs in areas where there has been previous growth, such as in abandoned fields or forest clearings. |
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| The rate at which organic material is produced by photosynthetic organisms in an ecosystem |
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| Organisms that first capture energy, include plants, some kind of bacteria, and algae. |
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| are those organisms that consume plants or other organisms to obtain the energy necessary to build their molecules. |
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| the process by which organisms with certain traits survive and reproduce at a higher rate than organisms without these traits. |
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