Despite the differences in neck length, mice, humans, and giraffes all have seven cervical vertebrae. This is an illustration of A. missing links. B. homologous structures. C. vestigial structures. D. analogous structures.
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Despite the differences in neck length, mice, humans, and giraffes all have seven cervical vertebrae. This is an illustration of
A. missing links.
B. homologous structures.
C. vestigial structures.
D. analogous structures.
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- In your Introduction to Biological Anthropology class, your instructor asks you to examine a fossil skull and determine which species it is. You note there is a sagittal keel at the top of the skull. Based on this information alone, to which species does the skull belong? A. Australopithecus boisei B. Homo habilis C. Australopithecus garhi D. Homo erectusWhich species has the most robust cheek bones? A. Homo erectus B. Homo rudolfensis C. Homo habilis D. Australopithecus afarensisWhich species has the most robust cheek bones? A.Homo rudolfensis B.Homo habilis C.Homo erectus D.Australopithecus afarensis
- Which species has the least robust brown ridges? A.Homo habilis B.Homo rudolfensis C.Homo erectus D.Australopithecus afarensisAfrican Homo erectus cranial features include A. Thick cranial bones. B. Small browridges. C. A rounded skull. D. A sagittal crest.Which of the following is one of the main tendencies observed in early hominins, such as australopithecines? A. Decrease in the number of incisors B. Reduced canine size C. Increased facial prognathism D. Increased diastema
- While listening to a hominin evolution podcast, the narrator mentions that the overall similarity of Homo erectus fossils from Africa, Asia, and Europe, and through time represents evolutionary statis. What evidence is there that this is not the case? A. The size of the teeth and jaws increased from earlier to later forms. B. There was an overall increase in cranial robusticity from earlier to later forms. C. The thickness of the cranial bone increased from earlier to later forms. D. Brain size increased by approximately 30% from earlier to later forms.Describe the difference you observe between the modern human skull’s chin and the Neanderthal skull’s lower jaw. What other differences do you observe between the two skulls?a) Which of the derived traits came into existence before the bony shell? b) List all the derived characters in the table that would have been present in the ancestor to gorillas, wolves and humans.
- a) Which of the derived traits came into existence before the bony shell? Explain. b) List all the derived characters in the table that would have been present in the ancestor to gorillas, wolves and humans. Explain.On a research expedition to the Galapagos, you and your research team discover four new species! All the animals appear to be chordates, but each animal has distinct traits: Animal A: Both vertebral column and jaws Animal B: Vertebral column, jaws, limbs and lays amniotic eggs (amniote) Animal C: Vertebral column Animal D: Vertebral column, jaws and limbs A. Identify four derived characteristics that all chordates share. B. Based on your understanding of phylogeny, map the animals and their traits onto the phylogenetic tree provided below. In your response, list each number (1-8) and indicate which trait or animal corresponds to that position on the phylogenetic tree.You are presented two mammal skulls (not skeletons) you have not seen before. What traits would you look for to determine if either is a primate or not, and what do these traits look like in a primate?