Plant cells have several structures that are not found in animal cells - chloroplasts, cell walls, and central vacuous. explain why each of these is useful for plant cells, but not needed or even a disadvantage for animal cells.

Look at the photo of the leaf. which term best describes this leaf?

Variety of living organisms; includes genetic, species, and ecological types.

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.