Along comes Dr Phil Bell and deep in the mines of Lightning Ridge, finds an amazingly preserved pterosaur that preserves feathers. He hypothesises that this means that feathers must have evolved before the origin of dinosaurs and therefore must have been primitive. Test this hypothesis using phylogenetic framework and provide a brief explanation of your process and whether or not you support Dr Bell's hypothesis.

Along comes Dr Phil Bell and deep in the mines of Lightning Ridge, finds an amazingly preserved pterosaur that preserves feathers. He hypothesises that this means that feathers must have evolved before the origin of dinosaurs and therefore must have been primitive. Test this hypothesis using phylogenetic framework and provide a brief explanation of your process and whether or not you support Dr Bell's hypothesis.

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter23: Principles Of Evolution

Section: Chapter Questions

Problem 6SQ

See similar textbooks

Similar questions

Along comes Dr Phil Bell and deep in the mines of Lightning Ridge, finds an amazingly preserved pterosaur that preserves feathers. He hypothesises that this means that feathers must have evolved before the origin of dinosaurs and therefore must have been primitive. How would you go about testing this hypothesis of feather origins?
Select all the possible evidence that can be use to support the Theory of evolution 1. Fossil records from the Jurassic 2. Hind leg bones in whales 3. Finger prints from humans 4. Homoplasies 5. Comparison of the femur of humans, birds, dogs and whales
Which of the following statements is BEST supported by the phylogenetic tree? A The development of a bony skeleton was a significant evolutionary step for ocean-dwelling animals. B Most warm-blooded animals evolved to have hair, while cold-blooded animals did not. C Most land animals require a vertebral column, while ocean animals do not. D The evolution of the amniotic egg was specific to ocean-dwelling animals.
1. Concept Check The similarity in bone structure and arrangement between cats and bats suggests that Humerus Radius Ulna Carpals Metacarpals Phalanges Human Cat Whale Bat a) bats originated from bird-like ancestors. b) bats originated from four-legged ancestors, such as cats. c) modern bats fly much faster than ancient bat species. © 2018 Pearson Education, Inc. 2. Concept Check Darwin proposed the theory of natural selection as the mechanism of evolution based on three observations about nature. Which of the following were part of Darwin's observations? a) Populations have the potential to produce more individuals than the environment can support. b) Individuals in some populations have varied characteristics. Variation in individuals appears to be inherited. d) all of the above © 2018 Pearson Education, Inc.
What are the two ways of finding the age of a fossil? Describe how relative dating works. What does absolute dating do? Why is the element carbon-14 important for paleontologists? . Developmental Biology - Embryology Many scientists use what an organism looks like as an embryo, or embryology, as evidence for evolution. The embryos of most vertebrates look very similar and have similar structures. For example, fish, bird, rabbit, and human embryos are similar in appearance in early stages. They all have gill slits and a tail with muscles to move it. Later as the embryos develop, they become less and less similar. What does the study of embryology show when comparing most vertebrates?
Match the descriptions/examples types of evidence that support evolution. 1.Biogeography 2.Comparative Embryology 3.Comparative Anatomy 4.Molecular Biology A.Organisms in New Zealand are more similar to organisms in Australia than they are to organisms in North America . B.The embryos of many species have gill pouches even though the gill pouches are not used in these species . C.The forelimbs of the human ,cat ,whale and bat have many similar bones despite the fact that the forelimbs have different functions . D.The Human genome is 98% identical to the Chimpanzee genome .
Examine the image of the relatedness of vertebrates represented in this phylogenetic tree. Which statements are correctly inferred from this tree? Select all that apply. A) The mammals are the outgroup in this tree. B) Birds and dinosaurs share a recent common ancestor. C) Mammals and birds are more closely related than any other species. D) Turtles are equally as diverged from lizards and snakes as they are from crocodiles. E) Lizards and snakes are more recently diverged from each other than they are from crocodiles.
draw an evolutionarily accurate phylogenetic tree with the 5 lineages of Amniotes shown in the bottom figure, but with a different arrangement. You can exclude lungfishes and amphibians but include all other lineages. You can do this by swiveling the branches.
A study inferred a maximum likelihood phylogenetic tree based on sequence data from a specific gene. Numbers represent bootstrap support values for each clade. Based on the study's findings, how certain should we be that marsupials are sister to placental mammals, rather than monotremes? What number is used to represent this certainty, and how was it calculated?
Which of the following shared characteristics of living birds and theropod dinosaurs provided support to the hypothesis that birds evolved from dinosaurs? Check all that apply. Group of answer choices 1-birds and many theropods have a wishbone (or furcula) 2-all birds and theropods could fly 3-like theropod dinosaurs, birds have long, bony tails under their feathers 4-birds and theropods have hollow bones that are strong, but light 5-birds and many theropods have feathers
Radiometric dating and the cranial capacity measurements are back from the paleolab for the specimen you discovered at the site you were excavating in South Africa. Lab results indicate that the cranial capacity is 520 cubic centimeters and it dates to about 1.5 million years ago. After having identified the cranial traits present, you can now take this new information and provide, at least, the genus to which you think it may belong. Based on this information, choose from the options below, the category to which you think it most likely belongs. -Pre-australopith -Premodern Human -Gracile Australopithecine -Early Genus Homo -Robust Australopithecine -Late Genus Homo
Radiometric dating and the cranial capacity measurements are back from the paleolab for the specimen you discovered at the site you were excavating in South Africa. Lab results indicate that the cranial capacity is 520 cubic centimeters and it dates to about 1.5 million years ago. After having identified the cranial traits present, you can now take this new information and provide, at least, the genus to which you think it may belong. Based on this information, choose from the options below, the category to which you think it most likely belongs. Group of answer choices Pre-australopith Premodern Human Gracile Australopithecine Early Genus Homo Robust Australopithecine Late Genus Homo