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Ecosystems

Practice Test
      
  1.__________ are usually shallow and filled with an abundance of plant and animal life.  
  a.   Lakes  
  b.   Oceans  
  c.   Rivers  
  d.   Ponds  
  Hint    
      
  2.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 move closer to cities to search for food and water.  
  c.   The animals migrate to tropical rain forests.  
  d.   The animals stop searching for water.  
  Hint    
      
  3.Which of these biomes is considered the most biologically diverse?  
  a.   tropical rain forest  
  b.   desert  
  c.   temperate deciduous forest  
  d.   grasslands  
  Hint    
      
  4.Which of these factors helps determine the climate of a region?  
  a.   the impact of succession  
  b.   the amount of precipitation  
  c.   the number of plant species  
  d.   the amount of erosion  
  Hint    
      
  5.When is the intertidal zone covered with water?  
  a.   at high tide  
  b.   at low tide  
  c.   during daylight hours  
  d.   during nighttime hours  
  Hint    
      
  6.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    
      
  7.The body of water where a river and an ocean meet is called __________.  
  a.   a pond  
  b.   a wetlands  
  c.   an understory  
  d.   an estuary  
  Hint    
      
  8.Which of the following animals can be found in a wetlands environment?  
  a.   bear  
  b.   salamander  
  c.   lemming  
  d.   beaver  
  Hint    
      
  9.Which biome would the kangaroos of Australia be found in?  
  a.   desert  
  b.   temperate deciduous forest  
  c.   tropical rain forest  
  d.   grasslands  
  Hint    
      
  10.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.   climax communities  
  b.   secondary succession  
  c.   primary succession  
  d.   pioneer species  
  Hint    
      
  11.Which one of these is true of the tropical rain forest biome?  
  a.   The soil contains permafrost.  
  b.   The soil is thin and gravelly.  
  c.   The soil thaws during the summer.  
  d.   The soil contains little dead vegetation.  
  Hint    
      
  12.Which biome typically has four distinct seasons?  
  a.   temperate deciduous forest  
  b.   temperate rain forest  
  c.   desert  
  d.   tundra  
  Hint    
      
  13.The region below about 200 m in an open ocean is called the __________.  
  a.   understory  
  b.   steppes  
  c.   canopy  
  d.   dark zone  
  Hint    
      
  14.Which of these biomes receives little annual precipitation?  
  a.   tundra  
  b.   taiga  
  c.   grasslands  
  d.   temperate deciduous forest  
  Hint    
      
  15.Primary succession begins in an area without __________.  
  a.   wind  
  b.   soil  
  c.   sunlight  
  d.   air  
  Hint    
      
  16.Taigas and grasslands are examples of __________.  
  a.   canopies  
  b.   estuaries  
  c.   biomes  
  d.   succession  
  Hint    
      
  17.Which of these aquatic ecosystems has the highest salinity?  
  a.   stream  
  b.   coral reef  
  c.   estuary  
  d.   river  
  Hint    
      
  18.Which of these is NOT a freshwater ecosystem?  
  a.   reef  
  b.   river  
  c.   wetlands  
  d.   pond  
  Hint    
      
  19.__________ describes the weather patterns that affect a region over a long period of time.  
  a.   Succession  
  b.   Weather  
  c.   Community  
  d.   Climate  
  Hint    
      
  20.Which plant is typically found in grasslands?  
  a.   rice  
  b.   cactus  
  c.   moss  
  d.   corn  
  Hint    

 
   
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