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An ecosystem is all of the biotic and abiotic factors in a community. Biotic factors are the living things and abiotic factors are the nonliving things. A community is where many different species live together. Biotic factors include every species of animal, plant, bacteria, protest, and fungi in the community. Abiotic factors include the soil, water, and the weather. The living species have many different relationships with each other that keep the ecosystem running. In the ocean the whale eats a seal: a predator/prey relationship. On land the tick sucks blood from a dog: a parasitic relationship. A bee pollinates a flower and gets a meal: a mutualistic relationship. A clown fish hides in the stinging tentacles a sea anemone and gains its protection but gives nothing back: a commensalistic relationship. All of these relationships are how species interact with each other. In an ecosystem the relationships between organisms is very important and when factors are introduced to the......

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