During natural selection, which organisms are most likely to survive as the environment changes?

a: ones that can best adapt to and survive in the changed environment
b: ones that can adapt to the original environment
c: ones that are randomly selected for survival independent of the environment
d: ones that are randomly selected for survival in the changed environment

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.