wilkinhavely
wilkinhavely wilkinhavely
  • 18-09-2016
  • Social Studies
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Describe why a shark develops gills

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joshua2021344
joshua2021344 joshua2021344
  • 18-09-2016
Sharks, just like any other fish, develops gills to breath underwater. Their gills, act like a filter to filter out the oxygen with the water.
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