BIOLOGY: LIFE ON EARTH-W/MASTERING ACCE
2020th Edition
ISBN: 9780135686553
Author: Audesirk
Publisher: PEARSON
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Textbook Question
Chapter 25, Problem 3MC
Which of the following is not a characteristic common to all chordates?
a. a notochord
b. a dorsal, hollow nerve cord
c. pharyngeal gill slits
d. a vertebral column
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Chapter 25 Solutions
BIOLOGY: LIFE ON EARTH-W/MASTERING ACCE
Ch. 25 - The two groups of mammals with the largest number...Ch. 25 - More than half of all vertebrate species are a....Ch. 25 - 3. Which of the following is not a characteristic...Ch. 25 -
4. Adult frogs and toads obtain oxygen...Ch. 25 -
5. Hagfishes
a. are predators of live...Ch. 25 - In chordates, the nerve cord is ________ and runs...Ch. 25 - Animals that are chordates but not vertebrates...Ch. 25 - Prob. 3FTBCh. 25 - Among tetrapod groups, hair is found in; the skin...Ch. 25 - The only mammals that lay eggs are. The only...
Ch. 25 -
1. Briefly describe each of the following...Ch. 25 - Prob. 2RQCh. 25 - List four distinguishing features of chordates.Ch. 25 - Describe the ways in which amphibians are adapted...Ch. 25 - 5. List the adaptations that distinguish reptiles...Ch. 25 - List the adaptations of birds that contribute to...Ch. 25 - 7. How do mammals differ from birds, and what...Ch. 25 - Prob. 1ACCh. 25 - Prob. 2AC
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- A divergence from ________ gave rise to tetrapods. a. ray-finned fishes c. cartilaginous fishes b. lizards d. lobe-finned fishesarrow_forwardMembers of Chondrichthyes differ from members of Osteichthyes by having a _______. a. jaw b. bony skeleton c. cartilaginous skeleton d. two sets of paired finsarrow_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
- Hagfish, lampreys, sharks, and tuna are all chordates that can also be classified into which group? a. Craniates b. Vertebrates c. Cartilaginous fish d. Cephalocordataarrow_forwardWhich 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 fishesarrow_forwardTetrapods evolved from_______ . a. sharks c. lobe-finned fishes b. teleosts d. placodermsarrow_forward
- Which of the following list places the important evolutionary innovations in the correct order of appearance in the chordate phylogeny? a. Vertebrae - bony skeleton - notochord - jaws - internal nares - lobe fins b. Jaws - notochord - bony skeleton - vertebrae - lobe fins - internal nares c. Notochord - jaws - vertebrae - internal nares - lobe fins - bony skeleton d. Notochord - vertebrae - jaws - bony skeleton - lobe fins - internal naresarrow_forwardWhat is one trait related to locomotion that Au. sediba shares with modern humans? A. Angled femurs B. Longer arms and shorter legs C. Long and thin pelvis D. A divergent big toe (big toe sticks out)arrow_forwardWhich chordate group has the most species? A. Hagfishes B. Lampreys C. Bony Fishes D. Cartilaginous Fishesarrow_forward
- Unlike Archaeopteryx, modern birds have_______ . a. a long bony tail c. a two-chambered heart b. a toothless beak d. feathersarrow_forwardMatch the benefit to the correct chordate adaptation. (match each number to the correct letter) 1. allows organisms to walk on land 2. allows organisms to lay eggs on land, without water 3. allows organisms to generate their own heat 4. provides a rigid structure for muscles A.bony skeleton B. Ectotherm C. Tetrapod D. Amniotic eggs E. Endotherm F. Seedsarrow_forwardWhat characteristic defines a chordate who is also a vertebrate?arrow_forward
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