jr035150 jr035150
  • 25-02-2021
  • Biology
contestada

Whitetip reef sharks spend most of the day lying on the ocean floor. While remaining still, these sharks pump water across their gills. The movement of water across their gills is necessary for

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laurenm06 laurenm06
  • 25-02-2021
water purification and to remove toxins from the water
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evelynsalinas320 evelynsalinas320
  • 05-03-2021

Answer:obtaining oxygen

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