Excretory The functions of the excretory system are the removal of metabolic waste products (mainly urea and its derivatives) the maintenance of water balance the regulation of various ions The main organ is the kidney (figure 3-17) in tetrapods but in aquatic organisms the gills and skin also play a large role.
(Excretory The functions of the excretory system; are; the removal of metabolic waste products (mainly urea and its derivatives) the maintenance of water balance the regulation of various ions The main organ is the kidney (figure 3-17) in tetrapods but in aquatic organisms the gills and skin also play a large role) (The main organ; is; the kidney) (the gills and skin; play; a large role)
Excretory The functions of the excretory system The main organ the gills and skin
are is play
the removal of metabolic waste products (mainly urea and its derivatives) the maintenance of water balance the regulation of various ions The main organ is the kidney (figure 3-17) in tetrapods but in aquatic organisms the gills and skin also play a large role
the kidney
a large role