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The wise-man, whose brain was sufficiently evolved about fifty thousand years ago, is known by the scientific name:
AHomo erectus
BHomo sapiens
CRamapithecus
DHomo habilis
Answer & Solution
Correct answer: B. Homo sapiens
1. Brain evolution of upright man continued for about a lakh years and discovered fire.
2. By around fifty thousand years ago the brain had evolved enough to be called wise-man.
3. Wise-man is given the scientific name Homo sapiens.
4. So the correct name is Homo sapiens.
5. Trap (Homo erectus): this refers to the earlier upright-walking man, before wise-man.
6. Trap (Ramapithecus): this is the much earlier first human-like ape, not wise-man.
7. Trap (Homo habilis): this skilled human stage came before wise-man.
8. Hence the fifty-thousand-year-old wise-man is Homo sapiens.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 1 "Heredity and Evolution", p.19_
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