CAMPBELL BIOLOGY (LL) >CUSTOM PKG.<
17th Edition
ISBN: 9781323745618
Author: Central Texas
Publisher: PEARSON C
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Textbook Question
Chapter 34, Problem 6TYU
Which of the following could be considered the inost recent common ancestor of living tetrapods ?
- (A) a sturdy-finned, shallow-water lobe-fin wliose append- ages had skeletal supports similar to those of terrestrial vertebrates
- (B) an armored, jawed placoderm with Iwo paiis of appendages
- (C) an early rav-finned fish that developed bony skeletal supports in its paired fins
- (D) a Salamander that had legs supported by a bony skeleton but moved with the side-to-side bending typical of fishes
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Which of the following could be considered the most recentcommon ancestor of living tetrapods?(A) a sturdy-finned, shallow-water lobe-fin whose appendages had skeletal supports similar to those of terrestrialvertebrates(B) an armored, jawed placoderm with two pairs of appendages(C) an early ray-finned fish that developed bony skeletalsupports in its paired fins(D) a salamander that had legs supported by a bony skeletonbut moved with the side-to-side bending typical of fishes
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Chapter 34 Solutions
CAMPBELL BIOLOGY (LL) >CUSTOM PKG.<
Ch. 34.1 - Identify four derived characters that all...Ch. 34.1 - Prob. 2CCCh. 34.1 - VISUAL SKILLS Based on the phylogenetic tree...Ch. 34.2 - How are differences in the anatomy of lampreys and...Ch. 34.2 - WHAT IF? In several different animal lineages,...Ch. 34.2 - WHAT IF? Suggest key roles that mineralized bone...Ch. 34.3 - What derived characters do sharks and tuna share?...Ch. 34.3 - Describe key adaptations of aquatic gnathostomes.Ch. 34.3 - draw it Redraw Figure 34.2 to show four lineages:...Ch. 34.3 - WHAT IF? Imagine that we could replay the history...
Ch. 34.4 - Prob. 1CCCh. 34.4 - Some amphibians never leave the water, whereas...Ch. 34.4 - WHAT IF? Scientists think that amphibian...Ch. 34.5 - Describe three key amniote adaptations for life on...Ch. 34.5 - Prob. 2CCCh. 34.5 - Identify four avian adaptations for flight.Ch. 34.5 - VISUAL SKILLS Based on the phylogeny shown in...Ch. 34.6 - Prob. 1CCCh. 34.6 - Prob. 2CCCh. 34.6 - MAKE CONNECTIONS Develop a hypothesis to explain...Ch. 34.7 - Identify some characters that distinguish hominins...Ch. 34.7 - Provide an example in which different features of...Ch. 34.7 - WHAT IF? Some genetic studies suggest that the...Ch. 34 - Describe likely features of the common ancestor of...Ch. 34 - Identify the shared features of early fossil...Ch. 34 - How would the appearance of organisms with jaws...Ch. 34 - Which features of amphibians restrict most species...Ch. 34 - Explain why birds are considered reptiles.Ch. 34 - Describe the origm and early evolution of mammals.Ch. 34 - Vertebrates and tunicates share (A) jaws adapted...Ch. 34 - Living vertebrates can be divided into two major...Ch. 34 - Unlike eutherians, both monotremes and marsupials...Ch. 34 - Which clade does not include humans? (A)synapsids...Ch. 34 - As hominins diverged from other primates, which of...Ch. 34 - Which of the following could be considered the...Ch. 34 - Prob. 7TYUCh. 34 - SCIENTIFIC INQUIRY DRAW IT As a consequence of...Ch. 34 - Prob. 9TYUCh. 34 - SYNTHESIZE YOUR KNOWLEDGE This animal is a...
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- 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..arrow_forwardWhat types of molecular and morphological changes occurred along the different branches that led to the ray-finned fish on the one hand and terrestrial tetrapods on the other?arrow_forwardFigure 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.arrow_forward
- Identify four derived characters that all chordates haveat some point during their lifearrow_forwardHow 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?arrow_forwardWhat is present on the feet of birds which provides more evidence for their evolution from reptiles and dinosaurs?arrow_forward
- How did the following fish groups evolve?a) Agnathab) Chondrichthyesc) Osteichthyesd) Tetrapodsarrow_forwardWhich of the following taxa of fish shared most direct common ancestry with the group of animals that evolved into the terrestrial tetrapods? -Subclass Elasmobranchii -Class Neopterygii -Subclass Sarcopterygii -Class Actinopterygii -Class Chondrichthyesarrow_forwardAmphioxus long has been of interest to zoologists searching for a vertebrate ancestor. Explain why amphioxus captured such interest and why it no longer is considered to resemble closely the direct ancestor of the vertebrates.arrow_forward
- Mammals are farther removed from echinoderms in phylogenetic alliance as they do with birds. Yet birds have a meroblastic cleavage, whereas mammalian cleavage is holoblastic, like echinoderms. How will the mammal convince the bird that it did not deviate from family traditions?arrow_forwardHow does the limb orientation of "advanced" tetrapods differ from that of "primitive" tetrapods? How much variation is there in the humeri, radii, and ulnas of tetrapods? What modifications has the manus undergone in the evolution of flight (birds, bats, & pterosaurs), swimming, running, & grasping?arrow_forwardHow would you distinguish pelycosaurs, early therapsids, cynodonts and mammals?arrow_forward
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