Biology (Raven), 9th Edition

Chapter 35: Vertebrates

Pre-Test

1
Which of these is NOT one of the four key features that characterize chordates?
A)A vertebral column
B)A hollow nerve cord
C)The notochord
D)Pharyngeal slits or pouches
E)A postanal tail
2
All of these characterize the vertebrates except
A)A vertebral column encloses and protects the dorsal nerve cord.
B)The distinct and well-differentiated head which carries sensory organs.
C)Specialized internal organs.
D)Vertebrates evolved around 2.5 billion years ago.
E)A bony or cartilaginous endoskeleton.
3
The sensory structure of sharks and bony fishes that detects changes in pressure waves is called
A)pressure ampuli.
B)the lateral line system.
C)the postanal tail.
D)the extended auditory system.
E)the placenta.
4
Which of these are distinguishing characteristics of hominids?
A)Notochord
B)Postanal tail
C)Upright posture
D)bipedal locomotion
E)Two of these are correct
5
Which of these is NOT true of mammals?
A)They have one of the most efficient respiratory systems among all animals.
B)Most have hair or fur.
C)They possess mammary glands.
D)They are endothermic
E)Mammals diverged about 220 million years ago.
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