Unlike ionic bonds, covalent bonds involve the
a. development of positively and negatively cha...
Unlike ionic bonds, covalent bonds involve the
a. development of positively and negatively charged ions.
b. sharing of electrons between atoms.
c. gain of one or more electrons by one atom from another.
d. loss of one or more electrons from one atom to another. machinery
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Natural selection changes allele frequencies because some survive and reproduce more successfully than others.
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