There are three different types of natural selection and all three types affect the frequency of alleles in a population. by analyzing
the graphs above, determine which type of natural selection is matched correctly to the effect it has on allele frequencies in
populations for certain traits.
a)
all are matched correctly
stabilizing selection; infant mortality increases if their weight is
significantly more or less than 7.5 lbs.
directional selection; a very effective insecticide, ddt, lost it effectiveness
on insects after years of extensive use.
disruptive selection; peppered moths in london were darker near
industrial areas and lighter in color in the more rural areas.

What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.