3. Linear evolution suggests that there is a ladder, or step- progression, to evolution over time -- one species building and transitioning into another species. A bushy interpretation of evolution suggests multiple overlapping species of hominins, with some species short-lived, and others existing for a long period of time. What type of evolutionary model does A. sediba support? Explain your answer.

3. Linear evolution suggests that there is a ladder, or step- progression, to evolution over time -- one species building and transitioning into another species. A bushy interpretation of evolution suggests multiple overlapping species of hominins, with some species short-lived, and others existing for a long period of time. What type of evolutionary model does A. sediba support? Explain your answer.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter23: Paleobiology And Macroevolution

Section: Chapter Questions

Problem 7TYK: Exaptations are traits that: a. prepare some organisms for future environmental changes. b. appear...

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1 - Consider natural selection and biocultural evolution. Why do you think anatomically modern humans were more reproductively successful than other contemporary hominins? Or were they? 2 - Why do you think such a small portion of Neandertal or Denisovan DNA exists in the gene pool of modern humans? Why not more? 3 - How might have anatomically modern humans avoided waiting tens of thousands of years for advantageous mutations to pop up that would allow them to adapt to all of these new environments they encountered as they dispersed across the Old World? What might have been a faster way for them to adapt to these environments that the groups who were already in the region had already adapted to? 4 - How does admixture between different regionally adapted populations increase a species chances of survival? 5 - How might the removal of a regionally adapted population make a species more susceptible to extinction?
2. Complete the following table, which compares microevolution with macroevolution. Microevolution Macroevolution Description 3. A common misconception regarding evolution is that humans evolved from apes. The reality is that we| share a common ancestor from which we both descended, but neither of our species is descended from the other. What pattern of evolution does this illustrate? 4. is the formation of a new species through evolutionary mechanisms.
2. Application Sapiens existed on Earth for a relatively long time? Explain. Yes, 300,000 years in fact Prior to the discovery of A. ramidus, could such a species be considered to be a "missing link"? Explain. 3. How long would a timeline be (in kilometers) using a scale of 10 cm = 1,000 years? on Farth is characterized by the appearance of many new species and the e by the persistence of some forms that garliest
56) The human body contains structures that are needed for survival, or in the case of vestigial structures, were needed for survivalL Wisdom teeth, seen here, are vestigial third molars. Human ancestors had larger jaws with more teeth. Over thousands of years, man no longer needed the third molar, and they became the source of dental problems rather than an aid in survival How does this vestigial structure support the theory of natural selection? ht ing The size of man's cranial cavity evolved. With increased cranial cavity size, the size of man's brain also grew. This resulted in a smaller jaw and no 14 A) room for the third molars. Agriculture and the use of fire changed what and how man ate and need for these teeth diminished over time. Jaw size and shaped evolved and there was insufficient room for the third molars. he B) The climate on Earth changed from very cold to tropical The tropical climate on Earth lead to a change in the diet of humans and that lead to the need for sharp,…
9. TRUE OR FALSE: Evidence of small-scale evolutionary changes is directly observed in an organism with short life cycles.
The fossil record indicates there have been several species of our genus, homo, but we are the last living member of our genus. What trait separates members of genus homo from other bipedal hominidae? O very large, complex brain. O upright walking. herbivorous diet. O tree-dwelling. QUESTION 6 The seven primary Linnaean categories are: O Genus, Species, Group, Kingdom, Animal, Tribe, and Family O Domain, Kingdom, Group, Family, Tribe, Genus, and Species O Kingdom, Phylum, Class, Order, Family, Genus, Species O Kingdom, Class, Order, Genus, Species, Subspecies and Race QUESTION 7 How many subspecies of homo sapiens are alive today? O one O six too many to count Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All 20,006 OCT W 31
When systematists study morphological or behavioral traits to reconstruct the evolutionary history of a group of animals, they assume that: a. similarities and differences in phenotypic characters reflectunderlying genetic similarities and differences. b. the animals use exactly the same traits to identify appropriatemates. c. differences in these traits caused speciation in the past. d. the adaptive value of these traits can be explained. e. variations in these traits are produced by environmentaleffects during development.
1. Choose one example of natural selection to investigate. Some examples of observed cases of natural selection include (but are not limited to): Cite information OA mussel population's response to the introduction of the Asian shore crab. DA peppered moth population's response to pollution (i.e., industrial melanism). O COVID-19: Virus Evolution. Highlighted means" CHOSEN TOPIC" 2. Research your specific example of natural selection to better understand how and why the population has changed over time. Organize your information into the presentation format below. Cite information. O Step by step explanation of how apopulation can change over time, using your example O Descriptlon of Inherlted varlatlon withiin the populatlon O Explanation of why some individuals are better able to survive and produce offspring O A description of the adaptation that is being favored by natural selection O Data to support explanations
1. List 3 to 5 kinds of animals that belong to the same group that may differ in appearance. 2. Are they alike in structure? Explain. 3. Are they alike in functions? 4. Can they breed or mate with one another only? 5. Do they have common ancestry? 6. Define species based on the question given.
Microtaxonomy ( Species and Speciation ) People who do not believe in evolution often cite the classic example of man presumably evolving from the apes. They oftern ask: if humans evolved from apes, why are there apes until today? How will you provide a convincing answer that there is no contradiction in the existence of apes and humans at the same time?
17.According to the excerpt from the Descent of Man in Sources of Making of the West… Charles Darwin asserts that observed differences between human races are evidence of multiple places of origin for humanity. Darwin acknowledges that his conclusions “will be denounced by some as highly irreligious” but he dismisses this as a valid argument against his explanation of human origins. Darwin asserts that “the assumed instinctive belief in God” is a valid argument for the existence of such a God. Darwin deliberately insults the Christians in his reading audience to gain traction for his arguments.
Adaptations B Fossils Ancestral structures Homologous structures 2. The process by which individuals that are better adapted to their environment are more lik to survive and reproduce than other members of the same species is called Natural selection Evolution C Competition Over production 3. Which of the following is the best example of an adaptation that helps organisms surviv their environment? A green coloring in lizards living on gray rocks B. a thick coat of fur on animals that live in the desert an extensive root system in desert plants