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Q: l view Posterior view
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A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…
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Q: Why is morphological convergence not a good explanation for vertebrate forelimbs?
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In what ways is the dogfish skeleton not a good example of the primitive vertebrate condition?
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- What traits in conodonts and ostracoderms are derived relative to those in hagfishes and lampreys?Describe three important differences between the skeletons of the crayfish and the pig.How does the alligator snout become elongated relative to the salamander’s? Does it add new bones, or change the shape of pre-existing (in amphibian ancestors) bones?
- In terms of the differences between the opossum, bird, bat, and mole skeletons, which is most like the human (and therefore, most primitive or generalized)? Which is least like the human and, therefore, the most specialized?How did the vertebrate appendage evolve into the limbs we find so useful today?What is present on the feet of birds which provides more evidence for their evolution from reptiles and dinosaurs?
- How are the "types ot veterbrae" modified in birds, relative to other amniotes? How is the axial skeleton adapted in birds AND primates, relative to other tetrapods? Explain how those changes relate to their upright posture and bipedal locomotion..How does the foot of a bivalve differ from the foot of a cephalopod, or the foot of a snail? In what ways do these differences reflect specific adaptations for each animal to its unique lifestyle?What is the taxonomic name for the superclass (of bony fish) that reflects the presence of a bony skeleton?
- Is the vertebral column a synapomorphy or symplesiomorphy among thevertebrates? ExplainHow is the skeleton of a sea urchin like the skeleton of a lobster? How is it different?In which ways does the limb orientation of "advanced" tetrapods differ from that of "primitive" tetrapods? What variations has the manus undergone in the evolution of flight (birds, bats, & pterosaurs), swimming, running, & grasping?
