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Questions and Answers
What is the 'Out of Africa' model of human evolution?
What is the 'Out of Africa' model of human evolution?
The Multi-regional model proposes that all modern humans derive from African ancestors.
The Multi-regional model proposes that all modern humans derive from African ancestors.
False
What evidence do proponents of the 'Out of Africa' model cite to support their theory?
What evidence do proponents of the 'Out of Africa' model cite to support their theory?
DNA evidence showing most genetic variation is found in Africa.
Homo erectus left Africa about ________ years ago to populate other regions.
Homo erectus left Africa about ________ years ago to populate other regions.
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Match the following theories with their descriptions:
Match the following theories with their descriptions:
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Study Notes
Evolution of Homo Sapiens
- Homo sapiens evolved approximately 120,000 years ago, marking a period of rapid global population growth.
- Homo erectus is recognized as a precursor to Homo sapiens, having migrated from Africa around 1.5 million years ago.
Theories on the Spread of Homo Sapiens
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Out of Africa Model: Suggests Homo sapiens originated in Africa and dispersed worldwide between 100,000 to 200,000 years ago, replacing other hominid species.
- Implication: All modern humans ultimately share African ancestry.
- Supporters cite that most genetic variation is found in African populations, indicating a longer period of evolution there.
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Multi-regional Model: Proposes that Homo sapiens evolved simultaneously in different regions from original Homo erectus settlers.
- Example: Populations in China may descend from local Homo erectus, while Australians could be linked to Southeast Asian settlers.
Genetic Evidence
- DNA analysis plays a crucial role in supporting both theories, as it examines the genetic material passed through generations.
- The "Out of Africa" proponents argue that higher genetic diversity in Africa implies a more extended and successful evolutionary history in that continent.
Current Scientific Consensus
- Ongoing debate exists, but the majority of scientists lean towards the "Out of Africa" hypothesis, affirming a common origin for all humans.
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Description
Explore the fascinating journey of Homo sapiens as they spread across the globe. This quiz covers theories such as the 'Out of Africa' model and how our species evolved from earlier hominins like Homo erectus. Test your knowledge on human ancestry and migration patterns.
