Campbell Biology: Concepts & Connections (8th Edition)
8th Edition
ISBN: 9780321885326
Author: Jane B. Reece, Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan
Publisher: PEARSON
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Chapter 19, Problem 14TYK
A good scientific hypothesis is based on existing evidence and leads to testable predictions. What hypothesis did the paleontologists who discovered Tiktaalik test? What evidence did they use to predict where they would find fossils of transitional forms?
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Which of the following is true about the phylogeny of birds and reptiles.
Question 35 options:
a)
Birds are more closely related to amphibians then they are to reptiles.
b)
Birds are a type of reptile, but are not related to dinosaurs.
c)
Birds and reptiles are the least related vertebrates.
d)
Birds are a type of reptile and are descended from a group of dinosaurs.
Paleontologists at Grand Staircase-Escalante National Monument discovered a new ceratopsid skull. The skull has a moderate-sized neck frill, indicating a small body, and has two short horns. The table shows rock formations at the monument and the location of known fossils relative to those formations.
Based on the evolutionary relationship suggested by the anatomy of the skull, in which of the following formations was the skull found?
Dakota
Wahweap
Kaiparowits
Canaan Peak
Based on the anatomical evidence from the photos below, create a claim about which modern organism is most closely related, evolutionarily, to the Megalodon. Provide reasoning to validate the evidence you chose to develop your claim.
Chapter 19 Solutions
Campbell Biology: Concepts & Connections (8th Edition)
Ch. 19 - Connecting the Concepts 1. In the primate...Ch. 19 - Prob. 2CCCh. 19 - A lamprey, a shark, a lizard, and a rabbit share...Ch. 19 - Why were the Tiktaalik fossils an exciting...Ch. 19 - Fossils suggest that the first major trait...Ch. 19 - Which of the following correctly lists possible...Ch. 19 - Which of these is not a member of the anthropoids?...Ch. 19 - Studies of DNA support which of the following? a....Ch. 19 - The earliest members of the genus Homo a. had a...Ch. 19 - Compare the adaptations of amphibians and reptiles...
Ch. 19 - Birds and mammals are both endothermic, and both...Ch. 19 - What adaptations inherited from our primate...Ch. 19 - Summarize the hypotheses that explain variation in...Ch. 19 - A good scientific hypothesis is based on existing...Ch. 19 - Explain some of the reasons why the human species...Ch. 19 - Anthropologists are interested in locating areas...Ch. 19 - SCIENTIFIC THINKING By measuring the fossil...
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- Please give the reason as well and I'll give a like for surearrow_forwardPaleontologists at Grand Staircase-Escalante National Monument discovered a new ceratopsid skull. The skull has a moderate-sized neck frill, indicating a small body, and has two short horns. The table shows rock formations at the monument and the location of known fossils relative to those formations. Ceratopsid Fossil Locations Cretaceuos-Age Rocks MYA Formation Canaan Peak 70- Triceratops Torosaurus Kaiparowits 80- Centrosaurus Chasmosaurus Wahweap Straight Cliffs 90- Zuniceratops Tropic Shale Dakota San Rafael Swell 100 Protoceratopsid Based on the evolutionary relationship suggested by the anatomy of the skull, in which of the following formations was the skull found? Dakota Wahweap Kaiparowits Canaan Peakarrow_forwardWhat 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?arrow_forward
- Evolutionary microbiologists developed a theory about a common ancestor for all eukaryotic cells. Below is a model of the theorized changes during the origin of eukaryotic cells. Prokaryotes are not capable of phagocytosis, or engulfing outside particles by creating a pocket in the cell membrane. Engulfing of photosynthetic Photosynthetic prokaryote eukaryote Infolding of plasma membrane Prokaryote Engulfing of aerobic heterotrophic prokaryote Heterotrophic eukaryote Which of the following changes in early prokaryotes could be predicted to result in the emergence of eukaryotic organisms? the development of genetic transfer mechanisms in prokaryotes the evolution of predatory or parasitic relationships in prokaryotes the emergence of collections of cells functioning together in prokaryotes the expansion of internal structures to support larger individual cells in prokaryotes Timearrow_forwardResearchers were working to determine the evolutionary history of modern horses using fossils of four horse ancestor species in North America. They had incomplete data for some of the fossils. This is the data available to the researchers. Species Fossil Location Percent Uranium 235 Decay Age of Rock Layer Mesohippus Colorado 3.2 Unknown Merychippus Montana 1.7 20–13 million years ago Dinohippus Montana Unknown 3–5 million years ago Orohippus Wyoming 5.4 Unknown Based on the data presented, what is the order of the fossils from most distant to most recent ancestor? Mesohippus, Dinohippus, Orohippus, Merychippus Dinohippus, Merychippus, Mesohippus, Orohippus Merychippus, Orohippus, Dinohippus, Mesohippus, Orohippus, Mesohippus, Merychippus, Dinohippusarrow_forwardWhich of the following is responsible for the early predominant image of Neanderthals as brutish cavemen? a). They had small brain cases with stocky bodies and were always recovered from cave sites b). The fossil evidence reveals that they had little cognitive capacity and had a hunched over posture c). An early fossil find of an Individual suffering from arthritis was assembled and taken as the type specimen foer all Neanderthals, mistakenly giving the idea that Neanderthals were an ape-like, hunched-over species.d). None of the above are truearrow_forward
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