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Introduction: The interactions of the biotic and abiotic factors affect the ecosystem in countless ways. Biotic factors are the living components in the environment, such as plants, animals, fungus, bacteria, and etc. Abiotic factors are the non-living components of the environment such as air, rocks, temperature, light, water, and etc. These are factors that have never been alive. Leather for example, is a biotic factor because leather actually comes from animals. Animals are obviously biotic factors of the ecosystem. Both factors depend on each other to preserve an ecosystem. In other words an ecosystem cant function properly with both factors existing. For example, an ecosystem without water; eventually all plants will die, then the animals, then humans. We humans can’t live without water. Another example is plants depend on light and temperature for the process known as Photosynthesis. In this experiment we are exploring these topics. We are trying to figure out the effects of fertilizer on plant height and growth. Data shows that fertilizer does help in the speed of growth and height of plants. (www.fertilizer.com) According to the informatio