Answer:
Epidemiology
Explanation:
<u>Epidemiology</u> provided the first solid evidence that smoking caused cancer and heart disease and has continued to yield information on the health effects of this very human habit.
An protein created principally by sure microorganism, having the property of cleaving deoxyribonucleic acid molecules at or close to a selected sequence of bases.
Answer:
It could possibly be a Heavy period. Heavy periods can have causes that aren't due to underlying disease. Examples include regular variation among individuals, hormonal imbalance, IUD use, or medication side effects.
Answer:
For example, an atom with 6 of 8 electrons in its outer shell will try to gain 2 electrons so its outer shell is full. Ionic bonding occurs when one element donates an electron (or electrons) to another so that both elements will have a full outer shell. As the attractions bring the atoms together, electrons from each atom are attracted to the nucleus of both atoms, which “share” the electrons. The sharing of electrons between atoms is called a covalent bond, which holds the atoms together as a molecule.
Explanation:
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