Their roots are near the surface, where they have access to oxygen.
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where is the question i cant see some thing
<h2>Bacterial chromosome
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The DNA of most bacteria is contained in a single circular molecule, called the bacterial chromosome. The chromosome, along with several proteins and RNA molecules, forms an irregularly shaped structure called the nucleoid. This sits in the cytoplasm of the bacterial cell
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"pumps blood against a greater resistance" that the answers. hope this helped