Archivo diario: 03/03/2016

Excretion and kidneys

By the end of this lesson you should be able to: State that urea is formed in the liver from excess amino acids State that carbon dioxide is excreted through the lungs State that the kidneys excrete urea and excess water and salts … Sigue leyendo

Publicado en Senior 4 - 2016 | Deja un comentario