There have been three major hypotheses to explain the evolution of modern Homo sapiens: 1) The...
There have been three major hypotheses to explain the evolution of modern Homo sapiens:
1) The African replacement
2) Hybridization and assimilation
3) Multiregional evolution
Discuss evidence supporting and/or refuting the three hypotheses, and indicate which is best.
Homework Answers
Multiregional evolution
-The multiregional hypothesis, multiregional evolution, or polycentric hypothesis is a scientific model that provides an alternative explanation to the more widely acceptedd out of Africa modl of monogenesis for the pattern of human evolution. This hypothesis states that independent multiple origins( Model D) or shared multiregional evolution with continuous gene flow between continental populations (Model C) occured in the million years since Homo erectus came out of Africa.
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There have been three major hypotheses to explain the evolution
of modern Homo sapiens:
1) The...
4) Briefly explain each of the following hypotheses: - The African replacement - Hybridization and assimilation...
4) Briefly explain each of the following hypotheses: - The African replacement - Hybridization and assimilation - Multiregional evolution Make sure to evidence that helps support or refute each of the hypothesis, indicating which one is the best.
Until recently, there were two competing theories about the origin of our species- "modern Homo sapiens"....
Until recently, there were two competing theories about the
origin of our species- "modern Homo sapiens". The first (single
African origin) is that all modern humans descended from a recent
ancestor in Africa, less than 200,000 years ago, and that our
ancestors replaced the archaic human species they found in their
migrations, including Neanderthals and Denisovans. (In the last few
years evidence from nuclear genomes of fossil humans has indicated
that there was limited interbreeding between the ancestors of
modern...
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Until recently, there were two competing theories about the
origin of our species- "modern Homo sapiens". The first (single
African origin) is that all modern humans descended from a recent
ancestor in Africa, less than 200,000 years ago, and that our
ancestors replaced the archaic human species they found in their
migrations, including Neanderthals and Denisovans. (In the last few
years evidence from nuclear genomes of fossil humans has indicated
that there was limited interbreeding between the ancestors of
modern...
QUESTION 1 Which of the following is (are) correct? The scientific name Homo sapiens indicate human beings are in the species is homo, while the genus is sapien. @ Woese-Fox proposed the present domain system. Natural selection is one mechanism leading to evolution. The sugar ribose is found in DNA but not in RNA. QUESTION 2 Some pProteins will denature if they are exposed to conditions like high heat, acidity or alkalinity. Which protein structure will be affected when these...
Answer one of these three questions. 1] Name and describe the 3 major evolutionary models, including their associated researchers, species, locations, evidence, time line etc. 2] Describe 3 traits unique to the crania, dentition and post crania for these species; Australopithecus aferensis, Homo erectus, Homo heidelbergensis, Homo neandertalensis and Homo sapiens. 3] Describe in detail the environmental situation and cultural inventions and capabilities concerning Homo erectus leaving Africa.
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