According to the Big Bang theory, the universe was once very dense and is now expanding.
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Ecology is the study of how living organisms interact with each other and with their environment. Abiotic factors are the parts of the environment that have never been alive, while biotic factors are the parts of the environment that are alive, or were alive and then died
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hope this helps
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Explanation:
plants make their own food not animals, hope this helped :)
<span>The place where two bones meet and allow our skeletons to be more flexible is known as a Joint.</span>
