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Ecosystems

Practice Test
      
  1.Because ponds tend to be filled with plant material, these bodies of water are usually high in __________.  
  a.   salinity  
  b.   acidity  
  c.   nutrients  
  d.   permafrost  
  Hint    
      
  2.Which of these biomes receives little annual precipitation?  
  a.   tundra  
  b.   temperate deciduous forest  
  c.   taiga  
  d.   grasslands  
  Hint    
      
  3.The gradual changes that happen in the types of species living in a region are called __________.  
  a.   succession  
  b.   balance  
  c.   permafrost  
  d.   community  
  Hint    
      
  4.Which of these animals might be found living in a taiga?  
  a.   moose  
  b.   kangaroo rat  
  c.   zebra  
  d.   spotted owl  
  Hint    
      
  5.After a house is torn down, the land it stood on begins to have grass and weeds grow from the soil. What is this an example of?  
  a.   primary succession  
  b.   climax communities  
  c.   secondary succession  
  d.   pioneer species  
  Hint    
      
  6.__________ are usually shallow and filled with an abundance of plant and animal life.  
  a.   Oceans  
  b.   Rivers  
  c.   Ponds  
  d.   Lakes  
  Hint    
      
  7.The body of water where a river and an ocean meet is called __________.  
  a.   an understory  
  b.   an estuary  
  c.   a wetlands  
  d.   a pond  
  Hint    
      
  8.Which of these is NOT a freshwater ecosystem?  
  a.   pond  
  b.   reef  
  c.   wetlands  
  d.   river  
  Hint    
      
  9.Which plant is typically found in grasslands?  
  a.   cactus  
  b.   corn  
  c.   rice  
  d.   moss  
  Hint    
      
  10.Which biome would the kangaroos of Australia be found in?  
  a.   grasslands  
  b.   temperate deciduous forest  
  c.   desert  
  d.   tropical rain forest  
  Hint    
      
  11.When is the intertidal zone covered with water?  
  a.   at high tide  
  b.   during nighttime hours  
  c.   at low tide  
  d.   during daylight hours  
  Hint    
      
  12.__________ describes the weather patterns that affect a region over a long period of time.  
  a.   Weather  
  b.   Climate  
  c.   Succession  
  d.   Community  
  Hint    
      
  13.Which of these biomes is considered the most biologically diverse?  
  a.   tropical rain forest  
  b.   grasslands  
  c.   desert  
  d.   temperate deciduous forest  
  Hint    
      
  14.In which aquatic ecosystem would you find ocean fish being raised for food for humans?  
  a.   a coral reef  
  b.   a wetlands  
  c.   an intertidal zone  
  d.   an estuary  
  Hint    
      
  15.Primary succession begins in an area without __________.  
  a.   sunlight  
  b.   air  
  c.   soil  
  d.   wind  
  Hint    
      
  16.Which biome typically has four distinct seasons?  
  a.   temperate deciduous forest  
  b.   desert  
  c.   temperate rain forest  
  d.   tundra  
  Hint    
      
  17.Which of these biomes receives the least amount of rainfall every year?  
  a.   desert  
  b.   temperate deciduous forest  
  c.   taiga  
  d.   tropical rain forest  
  Hint    
      
  18.Which one of these is true of the tropical rain forest biome?  
  a.   The soil contains little dead vegetation.  
  b.   The soil thaws during the summer.  
  c.   The soil is thin and gravelly.  
  d.   The soil contains permafrost.  
  Hint    
      
  19.Which of these factors helps determine the climate of a region?  
  a.   the number of plant species  
  b.   the amount of erosion  
  c.   the amount of precipitation  
  d.   the impact of succession  
  Hint    
      
  20.In many desert regions, water is diverted from streams and rivers to provide it to people in cities. How does this impact the animals in the area?  
  a.   The animals become more active during daylight hours.  
  b.   The animals migrate to tropical rain forests.  
  c.   The animals move closer to cities to search for food and water.  
  d.   The animals stop searching for water.  
  Hint    

 
   
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