Biology, Eighth Edition (Raven)

Chapter 35: Vertebrates

Pre Test

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
What feature(s) of the tunicates is/are unique to this subphylum? (p. 683)
A)symbiotic algae
C)possession of a cellulose coat
D)some are colonial
E)both c and d
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
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
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
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.
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
E)all of the above
What major feature(s) allow mammals to live in habitats unsuitable for reptiles? (p. 704)
A)the ability to swim
B)a larger brain
E)both c and d
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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