48 hours<span>Most plaque hardens within 48 hours of formation, and within several days it will become so hard that it is almost impossible to remove. This hard substance is tartar and the only way to remove it is to see your dentist for a professional scraping of your teeth.
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You are more healthy on natural foods
Answer:
Endocrine system: Hormones are released to increase awareness, The rate of nutrient absorption increases.
Urinary system: Blood needs to be cleaned, Waste needs to leave the body.
Nervous system: An organ detects high levels of insulin in the body, A student reads words on a page.
Explanation:
Answer:
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Explanation:
Thus, gases (such as O2 and CO2), hydrophobic molecules (such as benzene), and small polar but uncharged molecules (such as H2O and ethanol) are able to diffuse across the plasma membrane. Other biological molecules, however, are unable to dissolve in the hydrophobic interior of the phospholipid bilayer.
