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Chapter 30: Fishes and Amphibians

Practice Test
      
  1.Bony fishes have skeletons made of __________.  
  a.   endoderm  
  b.   cartilage  
  c.   bone  
  d.   scales  
  Hint    
      
  2.Salamanders resemble lizards except for having smooth, moist skin and lacking __________.  
  a.   claws  
  b.   tails  
  c.   jaws  
  d.   eggs  
  Hint    
      
  3.The development of separate vertebrae provided __________.  
  a.   more efficient gas exchange  
  b.   better sensory abilities  
  c.   large bone growth  
  d.   great flexibility  
  Hint    
      
  4.A fish with a flat body, a cartilaginous skeleton, and broad pectoral fins is called a __________.  
  a.   shark  
  b.   eel  
  c.   ray  
  d.   hagfish  
  Hint    
      
  5.Which of the following fishes has poison glands?  
  a.   shark  
  b.   lamprey  
  c.   ray  
  d.   pike  
  Hint    
      
  6.A tough, flexible material from which the skeletons of jawless fishes are made is called __________.  
  a.   exoskeleton  
  b.   cartilage  
  c.   bone  
  d.   endoderm  
  Hint    
      
  7.Cartilaginous gill arches of early jawless fishes evolved into __________.  
  a.   gills  
  b.   jaws  
  c.   skin  
  d.   scales  
  Hint    
      
  8.Sharks and rays have __________.  
  a.   external fertilization  
  b.   mouth-brooding  
  c.   asexual fertilization  
  d.   internal fertilization  
  Hint    
      
  9.Amphibian eggs lack shells and must be laid __________.  
  a.   on land  
  b.   below the tide line  
  c.   above the tide line  
  d.   in water  
  Hint    
      
  10.Most fishes have skin covered by overlapping rows of __________.  
  a.   scales  
  b.   ectoderm  
  c.   fins  
  d.   spines  
  Hint    
      
  11.Having jaws and being able to eat large chunks of food enables fishes to __________.  
  a.   grow larger  
  b.   circulate blood  
  c.   accomplish more efficient gas exchange  
  d.   spawn  
  Hint    
      
  12.In a two-chambered heart, one chamber pumps blood to gills, where oxygen is picked up and carbon dioxide is released, while the other chamber __________.  
  a.   pumps oxygenated blood to the body  
  b.   stores oxygenated blood  
  c.   receives deoxygenated blood from the tissues  
  d.   stores deoxygenated blood  
  Hint    
      
  13.In most fishes, fertilization is __________.  
  a.   external  
  b.   hermaphroditic  
  c.   internal  
  d.   asexual  
  Hint    
      
  14.In fishes, fan-shaped membranes that are supported by stiff spines and are used for swimming are called __________.  
  a.   cartilage  
  b.   scales  
  c.   fins  
  d.   rays  
  Hint    
      
  15.Biologists think that modern cartilaginous and bony fishes evolved from __________.  
  a.   ostracoderms  
  b.   echinoderms  
  c.   placoderms  
  d.   early amphibians  
  Hint    

 
   
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