BIOANLAB Instructor's Manual Ch 16.doc - Instructoru2019s...

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Instructor’s Manual Lab 16 Later Members of the Genus Homo Cladogram of the Homo Genus. This cladogram shows the possible relationships among the species discussed in this chapter. It is based on Zimmer 2013: Fig. 14.4, which was in turn adapted from Harmon 2013. It is provided as a synthesis of the material presented in this lab. You may share it with your students, or you may use an alternate interpretation of your choosing. Answers to Lab 16 Concept Review Questions 1. B. Homo erectus was the first species to live outside of Africa (not Australopithecus garhi , Homo sapiens , or Homo habilis ). 2. True ; some researchers do consider the African members of Homo erectus to be a separate species called Homo ergaster . IM16-1
3. C. Homo heidelbergensis is the species that lived in Europe around 200 kya and had a long and low cranium, a large cranial capacity (around 1300 cc), and a very small occipital torus (not Homo neanderthalensis , Homo erectus , or Homo sapiens ). 4. False ; Mousterian tools are not made from stone flakes that have an elongated, blade-like shape because blades were part of the Upper Paleolithic technology developed later. 5. A species that made Mousterian tools is one of the following: H. heidelbergensis or H. neanderthalensis 6. We have been able to recover ancient DNA from a few Neanderthals but not from our other extinct relatives because: Some Neanderthals died recently enough that their skeletons are not fully fossilized. The remains of our other extinct relatives are fully fossilized, so they lack DNA. 7. A physical adaptation Neanderthals had for life in a cold climate is one of the following: Large nasal opening, short and stocky body, robusticity 8. Compared to Neanderthals, early humans had A. a taller cranium and more vertical forehead (not a more limited diet emphasizing large game animals, more physical adaptations for living in a cold climate, or a more pronounced occipital bun). 9. Homo neanderthalensis is the Homo species that has the largest average cranial capacity. 10. D. Homo floresiensis is the fossil species that lived on a small Indonesian island around 18 kya, used stone tools to hunt animals, but had a very small cranial capacity (around 400 cc) and a very small body (not Australopithecus afarensis , Homo erectus , or Homo habilis ). Answers to Lab 16 Exercises Exercise 1: Early versus Later Members of the Genus Homo (5 to 10 minutes) IM16-2

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