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Questions and Answers
What is the approximate timeline for the beginning of human evolution?
What is the approximate timeline for the beginning of human evolution?
- 100,000 years ago
- 7 crore years ago (correct)
- 50,000 years ago
- 10,000 years ago
What led to the formation of new species according to the text?
What led to the formation of new species according to the text?
- Geographical and reproductive isolation (correct)
- Climate change
- Mutation and genetic drift
- Competition for resources
What is responsible for the disappearance of tails in monkey-like creatures around 4 crore years ago?
What is responsible for the disappearance of tails in monkey-like creatures around 4 crore years ago?
- Gradual changes over time (correct)
- Predator pressure
- Mutation in DNA
- Sudden environmental shift
Why is the study of fossils important in the study of evolution?
Why is the study of fossils important in the study of evolution?
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What marked the emergence of true wise and intelligent man according to the text?
What marked the emergence of true wise and intelligent man according to the text?
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Study Notes
Human Evolution Timeline
- Human evolution is believed to have begun approximately 6-8 million years ago.
Species Formation
- The formation of new species is attributed to geographical isolation, genetic variation, and adaptation to different environments.
Evolution of Body Features
- The disappearance of tails in monkey-like creatures around 4 crore years ago is attributed to the reduced need for balance in upright posture.
Importance of Fossil Study
- The study of fossils is crucial in the study of evolution as it provides a chronological record of the history of life on Earth, allowing us to understand how species changed over time.
Emergence of Homo Sapiens
- The emergence of true wise and intelligent man, characterized by modern human-like features, is marked by the discovery of Homo sapiens fossils around 50,000-70,000 years ago.
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Description
Test your knowledge of heredity and evolution with this quiz. Complete a diagram, read statements about human evolution, and justify the statements with examples.
