The diagram illustrates the differences between the skulls and brain volumes of three extinct hominins. Rank the species shown i
n the diagram in order according to when they first appeared, from earliest to most recent. A. Homo neanderthalensis, Homo erectus, Australopithecus africanus B. Australopithecus africanus, Homo erectus, Homo neanderthalensis C. Australopithecus africanus, Homo neanderthalensis, Homo erectus D. Homo erectus, Australopithecus africanus, Homo neanderthalensis
The timeline of human evolution has been predicted and explained on the basis of the fossils. The age of the fossils helps determine when the different ancestor of the modern humans existed.
The modern human evolution started around 3.85 and 2.95 million years ago in Eastern Africa where the fossils of the <em>Australopithecus afarensis</em> were found.
They showed characters of both humans and apes and were evolved to<em> Homo erectus</em> which exhibited the characters of humans like elonagated legs and shorter arms. They evolved around 2 million years ago.
Later they evolved for the adaptations to living in the ice age with less height but more muscularity. They were called <em>Homo neanderthelensis </em>which were our closest ancestors which became extinct.
To calculate the pH of an aqueous solution you need to know the concentration of the hydronium ion in moles per liter (molarity). The pH is then calculated using the expression: pH = - log [H3O+].
