In a table, compare and contrast the generalized fish and generalized tetrapod skulls based on the three phylogenetically distinct parts of a vertebrate skull. Fish Skull Tetrapod Skull Chondrocranium Dermatocranium Splanchnocranium
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- Explain the significance of the discovery of Archaeopteryx.Why did this fossil demonstrate beyond reasonable doubt that birds are grouped phylogenetically with dianosaurs ? Explain detailsGive the correct scientific name of the following. Give a description of each species, including its order and family. homo neanderthalisdiplodocus hallorumailurus fulgensailuropoda melanoleucamammuthus africanavusIn the phylogeny below, the origin of which trait could be indicated by the letter B? A single temporal opening on the side of the skull Extra-embryonic membranes A placenta Jaws Hair and mammary glands lungfish frogs salamanders caecilians parareptiles turtles lizards mosasaurs snakes ichthyosaurs plesiosaurs crocodiles ornithisichian dinosaurs non-avian saurischian dinosaurs birds eothyridids caseids varanopids ophiacodontids edaphosaurids sphenacodontids biarmosuchians dinocephalians squopowoue gorgonopsians therocephalians snupeubossejeyɔ Probainognathus uopouoɔous marsupial: monotremes placentals
- Use the photo and fossil of this specimen (they are from the same species that was an ancestor to a modern class of tetrapods) to answer the following: What class of tetrapod would you predict this specimen belongs to? What features of the body make it resemble the class you provided? What MAJOR ABILITY would this specimen lack that the class above would have? What is the name of this type ancestral specimen?Characterized by a pelvis with the pelvic bones radiating from the center Ichthyosaurs Plesiosaurs Ornisthicians Pterosaurs SaurichiansAn antorbital fenestra and external mandibular fenestra are synapomorphies of archosaurs * true false
- Nimravids Skeleton vs Siberian Tiger Skeleton vs Smilodon Necator SkeltonCompare and contrast the appearance of specific bones in the skeleton. Compare the skeleton of the extinct creatures with the extant creature, and with themselves. How might the variation in anatomy link to the likely function? Compare species' skeletal anatomy based on life history (aquatic vs terrestrial). What are other interesting factors noted in the skeletons?“Fishapod” (or stem tetrapod) traits include everything except: Neck Differentiated limb bones Five digits BackboneFigure 15.33 Which of the following statements about common features of chordates is true? a. The dorsal hollow nerve cord is part of the chordate central nervous system. b. In vertebrate fishes, the pharyngeal slits become the gills. c. Humans are not chordates because humans do not have a tail. d. Vertebrates do not have a notochord at any point in their development; instead, they have a vertebral column.
- Based on the primary features only, ldentify and name any five chordates (two must be aquatic) that you come across in your environment. State the visible features that aided your identificationHoplophoneus primaevus Skeleton vs Siberian Tiger Skeleton vs Smilodon Necator SkeltonCompare and contrast the appearance of specific bones in the skeleton. Compare the skeleton of the extinct creatures with the extant creature, and with themselves. How might the variation in anatomy link to the likely function? Compare species' skeletal anatomy based on life history (aquatic vs terrestrial). What are other interesting factors noted in the skeletons?Sharks are cartilaginous fish. That is, the bulk of their skeleton is composed of cartilage instead of calcified bone. Their jaw however, is calcified, and is often the only preserved part of their body. Examine the shark jaw in the photo, and deduce the overall symmetry of the organism based on the jaw. Bilateral Pentameral Asymmetrical Radial