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  • 02-03-2017
  • Biology
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2. In what direction are substances moving during the process of secretion (in nephrons) ? Explain what these substances are and why they are excreted from the body.

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Message917080288808 Message917080288808
  • 02-03-2017
they trace the path from pharynx to the anus being absorbed all the nutrients is secreted in the stool/this is because they have no nutrients to provide to body
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