The earliest-diverging gnathostomes (jawed vertebrates) were fish. Which one of the following statements about the characteristics of different groups of modern jawed fish is INCORRECT? a. Ray-finned fish possess a bony skeleton and an operculum covers the gills. b. Cartilaginous fish are denser than water and maintain buoyancy using fins and a large oil-filled liver. c. Lobe-finned fish such as dipnoi possess both gills and lungs. d. Ray-finned fish possess fins supported by skeletal extensions of the pectoral and pelvic areas and moved by muscles. e. Cartilaginous fish possess flexible cartilage skeletons, which is a derived character.
The earliest-diverging gnathostomes (jawed vertebrates) were fish. Which one of the following statements about the characteristics of different groups of modern jawed fish is INCORRECT? a. Ray-finned fish possess a bony skeleton and an operculum covers the gills. b. Cartilaginous fish are denser than water and maintain buoyancy using fins and a large oil-filled liver. c. Lobe-finned fish such as dipnoi possess both gills and lungs. d. Ray-finned fish possess fins supported by skeletal extensions of the pectoral and pelvic areas and moved by muscles. e. Cartilaginous fish possess flexible cartilage skeletons, which is a derived character.
Concepts of Biology
1st Edition
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:Samantha Fowler, Rebecca Roush, James Wise
Chapter15: Diversity Of Animals
Section: Chapter Questions
Problem 3ACQ: Figure 15.33 Which of the following statements about common features of chordates is true? a. The...
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The earliest-diverging gnathostomes (jawed vertebrates) were fish. Which one of the following statements about the characteristics of different groups of modern jawed fish is INCORRECT?
a.
Ray-finned fish possess a bony skeleton and an operculum covers the gills.
b.
Cartilaginous fish are denser than water and maintain buoyancy using fins and a large oil-filled liver.
c.
Lobe-finned fish such as dipnoi possess both gills and lungs.
d.
Ray-finned fish possess fins supported by skeletal extensions of the pectoral and pelvic areas and moved by muscles.
e.
Cartilaginous fish possess flexible cartilage skeletons, which is a derived character.
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