« OHS 2019 Chap5 » : différence entre les versions

Version du 21 mai 2019 à 11:26

In chapter 5 how is the genus Homo defined physically and how is this genus different from other species?
Why is the main difficulty to know if similar structures are homologous or analogous ?
"Complex language has also been proposed as a defining feature of humans." (p.84)
When did we start talking and how?
Would you be an advocate of biologically recreating or engineering a neanderthaal in today's age?
If different species such as homo erectus and homo spapiens could interbreed, wouldn't that change the definition of what makes a species?
On page 88, "some experts consider that true humans nevertheless go back even further than 2 million years ago." How did they come to this conclusion? How did they define a human?
Why did scientists seperate/create different periods of "Stone Age"? What are the characteristics of each period?
Is it possible that humans will evolve even more and reach a point that it will create a new species? What will be the consequences? Will we be considered as humans as well?
Why did some experts consider that fossils found at Dmanisi in Georgia are part of Homo erectus and are not considered as a new species, Homo naledi? What are their similarities?
What suggests that Homo antecessor is the last common ancestor of the subsequent Neanderthal and H. sapiens lineages?
Why are the Neanderthals considered as ancient humans?

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 *Would you be an advocate of biologically recreating or engineering a neanderthaal in today's age?
 *If different species such as homo erectus and homo spapiens could interbreed, wouldn't that change the definition of what makes a species?
+*On page 88, "some experts consider that true humans nevertheless go back even further than 2 million years ago." How did they come to this conclusion? How did they define a human?
+*Why did scientists seperate/create different periods of "Stone Age"? What are the characteristics of each period?
+*Is it possible that humans will evolve even more and reach a point that it will create a new species? What will be the consequences? Will we be considered as humans as well?
+*Why did some experts consider that fossils found at Dmanisi in Georgia are part of Homo erectus and are not considered as a new species, Homo naledi? What are their similarities?
+*What suggests that Homo antecessor is the last common ancestor of the subsequent Neanderthal and H. sapiens lineages?
+*Why are the Neanderthals considered as ancient humans?