Concept explainers
To correct: The given sentence by replacing the underlined blank.
Introduction: Evolution is the change in traits of a species over generations, which is mainly dependent on the natural selection.
Explanation of Solution
Cro-Magnons are the first evidence of complex human culture which appeared in Europe, before the disappearance of Neanderthals. They developed artificial, sophisticated tools and weapons which included spears and bows and arrows. Cro-Magnons represent the initiation of historic hunter-gatherer societies.
The fossil record of Homo ergaster is believed to be 1.8-1.2 million years ago. They had an average brain capacity of
The transition from Homo ergaster to Homo sapiens happened gradually. There are various transitional fossils which show a mosaic pattern of Homo ergaster and Homo sapiens .
Homo ergaster were adapted to cold climates. They eventually were replaced by modern humans.
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