(a) australopithecus afarensis (b)homo habilis (c)homo erectus (d) homo...

...neanderthalensis (e) homo sapiens? 36.- neanderthal
37.- the first human toolmakers
38.- a fully bipedal, small-brained link between apes and humans
39.- associated with tools, such as hand axes that were more advanced than scrapers and choppers, and with cultural transmission of information