<span>DNA Polymerase proof reads and corrects the bases that are added.
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Blood flow is
Redirected
According to metabolic needs
There are different reasons for formation off things. The blackheads are formed when sebaceous glands become clogged.
<h3> How do whitehead and blackhead form?</h3>
When sebaceous gland's duct is known to be blocked by sebum, a whitehead is therefore seen or show forth on the skin surface.
When the built up material oxidizes and dries, it therefore darkens, and then create a blackhead.
Learn more about blackheads from
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The ileocecal valve guards the passageway between the ileum and the cecum
They are the same because they are both fertilised, but different because ones fertilised inside and the other artificially outside
