Which statement best describes how bony fish osmoregulate?

+2 votes

 

  

They secrete a concentrated salt solution in the rectal gland.

  

They filter ions through and produce urine in a kidney.

  

They control the balance of ions gained across gills and excreted in urine.

  

They maintain tissues that are isotonic to seawater.

 

asked Dec 31, 2012 in Biology by anonymous
    

1 Answer

0 votes

 

They control the balance of ions gained across gills and excreted in urine.

 

answered Dec 31, 2012 by anonymous



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