Biology, Eighth Edition (Raven)

Chapter 35: Vertebrates

Pre Test

1
What are the nearest relatives of the chordates? (p. 682)
A)the deuterostomes
B)the protostomes
C)the echinoderms
D)the urochordates
E)the cephalopods
2
What feature(s) of the tunicates is/are unique to this subphylum? (p. 683)
A)symbiotic algae
B)segmentation
C)possession of a cellulose coat
D)some are colonial
E)both c and d
3
One of the major reasons for the success of the vertebrates was: (p. 685)
A)the development of a distinct head.
B)the invasion of the land.
C)the protection of the nerve chord by the vertebral column.
D)the existence of a closed circulatory system.
E)all of the above
4
What feature(s) found in most of the fishes probably led to their great success as vertebrates? (p. 688)
A)internal gills
B)covering of scales
C)evolution of a hinged jaw
D)evolution of fins for efficient swimming
E)both a and c
5
Why are the amphibians a particularly important group of vertebrates? (p. 691)
A)They were the first vertebrates to walk on land.
B)They have cutaneous respiration.
C)They play key roles in terrestrial ecosystems.
D)They have a partially divided heart.
E)both a and c
6
What was the most important key evolutionary advance that allowed the reptiles to live in a variety of habitats? (p. 694)
A)The evolution of stronger legs.
B)The evolution of dry skin.
C)The evolution of the amniotic egg.
D)The evolution of thoracic breathing.
E)The evolution of a thicker skull.
7
Among living animals feathers are unique to birds. However, birds share the following feature(s) with reptiles: (p. 700)
A)hollow bones
B)many fused bones
C)air sacs
D)scales
E)all of the above
8
What major feature(s) allow mammals to live in habitats unsuitable for reptiles? (p. 704)
A)the ability to swim
B)a larger brain
C)endothermy
D)hair
E)both c and d
9
Primates have two evolutionary innovations that allowed them to succeed as tree-dwelling insectivores. These are: (p. 709)
A)endothermy, hair
B)nocturnal vision, grasping fingers and toes
C)binocular vision, prehensile tails
D)binocular vision, grasping fingers and toes
E)nocturnal vision, prehensile tails
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