Some genetic studies suggest that the most recent common ancestor of Homo sapiens that lived outside of Africa spread from Africa about 50,000 years ago. Compare this date to the dates of the fossil record. Can both the genetic results and the dates ascribed to the fossils be correct? Explain and Justify.

Some genetic studies suggest that the most recent common ancestor of Homo sapiens that lived outside of Africa spread from Africa about 50,000 years ago. Compare this date to the dates of the fossil record. Can both the genetic results and the dates ascribed to the fossils be correct? Explain and Justify.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter19: Population Genetics And Human Evolution

Section: Chapter Questions

Problem 23QP: The Evolutionary History and Spread of Our Species (Homo sapiens) a. Briefly describe the two major...

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Some genetic studies suggest that the most recent common ancestor of Homo sapiens that lived outside of Africa spread from Africa about 50,000years ago. Compare this date to the dates of the fossil record. Can both the genetic results and the dates ascribe to the fossils be correct? Justify.
Some genetic studies suggest that the most recent common ancestor of Homo sapiens that lived outside of Africa spread from Africa about 50,000years ago. Compare this date to the dates of the fossil record. Can both the genetic results and the dates ascribe to the fossils be correct? Justify. PLEASE INDICATE A REFERENCE
Homo heidelbergensis is considered by many to be a transitional species between Homo ergaster and Homo neanderthalensis. Use the following two models to help you answer the questions below. a. Name one Homo ergaster trait observable in this fossil.b. Name one Homo neanderthalensis trait observable in this fossil.
The fossil record shows that the ﬁrst mammals evolved 220 million years ago. The supercontinent Pangaea began to break apart 200 million years ago. On which continents would you predict that fossils of the ﬁrst mammals will be found?
Fossils show that dinosaurs originated between 200 and 250 million years ago. Would you expect the geographic distribution of early dinosaur fossils to be on multiple continents or on a single continent? Explain. Hint: refer to continental drift in your explanation.
Because of selective forces, the dinosaurs were superbly adapted to their environments. After the dinosaurs became extinct, the small mammals that had been relatively unimportant animals in the background flourished and evolved into many new types, including the line that led to human beings. It is unlikely that these new types would have ever evolved had not the dinosaurs disappeared. If the extinction of the dinosaurs was caused by an extraterrestrial impact, did it matter how well they were adapted to their environment? What does this suggest about the starting cause in the evolutionary success of these new types of mammals?
In studying recent fossils of the genus Homo, such as Cro-Magnon,biologists have determined that modern humans have not undergonemuch biological evolution in the past 50,000 years. Rather, culturalanthropologists argue that cultural evolution has been far moreimportant than biological evolution in the recent history of modernhumans. What do they mean by this? Support your argument withsome examples.
Current evidence indicates that the earliest anatomically modern Homo sapiens fossils are from which geographical location? Group of answer choices Africa France Germany India China
The proliferation of the Homo sapiens species has been attributed by scientists to their migration around the African and Eurasian continents between 70,000 and 100,000 years ago. What enabled this constant migration? What resulted from this constant migration?
Paleoanthropologists generally agree that Homo erectus belongs in our genus and represents a significant shift towards adaptations important to our own species. However, there is much variation among specimens that are grouped into H. erectus. Your instructor will let you know which of these fossil representatives to use for the exercise today.Based on your measurements and comparisons in the table above, what are major differences among Au. africanus, H. habilis, and H. erectus? Do you think H. habilis is more like Australopithecus or Homo? How do these three species reflect the major environmental pressures of the time periods in which they lived, respectively? List three features that are changing in the genus Homo due to these selective pressures. List three features found in H. erectus that are derived, compared to Au. africanus.
DNA sequences in many human genes are very similar to the sequences of corresponding genes in chimpanzees. Which of the following statements is the explanation for this result? Group of answer choices Convergent evolution led to the DNA similarities. Humans and chimpanzees share a relatively recent common ancestor. Humans evolved from chimpanzees. Chimpanzees evolved from humans.
Some scientists suggest that the Neanderthals and possibly Denisovans, never went extinct, but instead where assimilated into Homo Sapiens. What evidence would you look for to support this hypothesis?