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Chapter 30: Fishes and Amphibians

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

 
   
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