Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
12th Edition
ISBN: 9780135755785
Author: Gerald Audesirk, Teresa Audesirk
Publisher: PEARSON+
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Chapter 19, Problem 2RQ
Summary Introduction
To determine:
The features that describe whether a dolphin is more closely related to a fish or to a bear.
Introduction:
Evolution is defined as the change in heritable characteristics in a biological population over successive generations. Evolution is the result of natural selection, mutation, hybridization, and inbreeding.
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Chapter 19 Solutions
Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
Ch. 19.1 - Analysis of human chromosome 2 revealed that it...Ch. 19.1 - Origin of a Killer Analysis of nucleotide...Ch. 19.1 - explain why scientific names are necessary?Ch. 19.1 - describe the type of similarities that...Ch. 19.1 - Prob. 3CYLCh. 19.2 - Prob. 1TCCh. 19.2 - Prob. 1CYLCh. 19.2 - explain how scientists discovered that prokaryotes...Ch. 19.3 - Prob. 1HYEWCh. 19.3 - Prob. 1CYL
Ch. 19.3 - Prob. 2CYLCh. 19.4 - Prob. 1CYLCh. 19.4 - Prob. 2CYLCh. 19.4 - Prob. 1CTCh. 19 - Prob. 1MCCh. 19 - To be informative for reconstructing the phylogeny...Ch. 19 - Prob. 3MCCh. 19 - In modern systematics, classifications are...Ch. 19 - Which of the following includes all the domains...Ch. 19 - Prob. 1FIBCh. 19 - Prob. 2FIBCh. 19 - In Linnaean classification, the eight major...Ch. 19 - Systematists determine the evolutionary...Ch. 19 - Prob. 5FIBCh. 19 - The number of named species is about ________, but...Ch. 19 - What contributions did Linnaeus and Darwin make to...Ch. 19 - Prob. 2RQCh. 19 - What techniques might you use to determine whether...Ch. 19 - Only a small fraction of the total number of...Ch. 19 - In England, daddy longlegs refers to a long-legged...Ch. 19 - Why are species designations of asexually...Ch. 19 - Applying the Concepts The pressures created by...Ch. 19 - Applying the Concepts 2. During major floods, only...Ch. 19 - Consider the following list of groups: (1)...
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- "Vertebrae" would be an example of an: I) autapomorphy II) plesiomorphy III) synapomorphy IV) symplesiomorphyarrow_forwardIf you were using cladistics to build a phylogenetic tree of cats,which of the following would be the best outgroup?(A) wolf(B) domestic cat(C) lion(D) leopardarrow_forwardMammals, like humans and apes, have 5 digits on their fore and hind limbs. Modern horses have 1. How might you recontrust the ancestral state of mammal tow number?a) investigate the number of toes on all extant horses and apesb) investigate the number of toes for other mammals and use parsimony to deduce the ancestral statec) investigate the number of toes for an outgroup that is closely related to mammals, for example reptiles or amphibiansd) either b or ce) all of the abovearrow_forward
- How can true seals be differentiated from the eared seals (sea lions and fur seals)?arrow_forwardExamine 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.arrow_forwardBased on their anatomical and behavioral differences, biologists previously placed humans and chimpanzees in different families, but now DNA sequence data suggest that they are closely related and should be placed in the same family. What are some advantages of using DNA sequences to decide how to classify organisms? What might be some disadvantages?arrow_forward
- How are shared ancestral characters and shared derived characters different? How is the concept of homology related to these concepts?arrow_forwarda) Is there a monophyletic group that includes only the tapir, rhinoceros, and equids (Horses)? If so, which animals are included? b) Is there a monophyletic group that includes only pronghorns and deer? If so, which animals are included? c) Is there a monophyletic that includes pigs and bovidss? If there is, what other animals would be a part of the monophyletic group?arrow_forwardList five characters you have that are analogous to characters with the same function but of different ancestral origin in any other species.arrow_forward
- Now, assume that tuna and dolphins are sister species. Redraw the phylogenetic tree accordingly. Use hatch marks to indicate the origins of characters 1-6?arrow_forwardWhich of the following is supported by molecular phylogenetic studies? a.) Lobe-finned fish are more closely related to humans than to other fish. b.) Lobe-finned fish are more closely related to other fish than to humans. c.) Lobe-finned fish are more closely related to other fish than to humans. d.) All of the answers are correct e.) Lobe-finned fish are tetrapods.arrow_forwarda) Is Figure 1 a cladogram, phylogram, or chronogram? b) According to Figure 1, all bears share a common ancestor with what group of mammals? c) What pair of bear species diverged most recently? d) The ancestor of what species of bear diverged the earliest from the ancestor of all other bears?arrow_forward
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