The primary difficulty is the fact that we do not know all of the organisms that currently exist in the world along with those that existed in the past.
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The goal of materials engineering is to predict and control material properties through an understanding of atomic, molecular, crystalline, and microscopic structures of engineering materials
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I am not sure whether or not this is a statement or a question, but a healthy diet would consist of more diversity. You could live off of that and maintain a healthy body, but it would not be recommended.
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