A scientist discovers a new species and compares its embryos to the embryosOf several different mammals the new organism doesn’t have pharyngeal arches or a notochord and it doesn’t go through the Carnegie stages of development from this information what can the scientists conclude

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

28528289 29823282 8298232 39858