The functions of the urinary system include the functions of the urinary system include excreting nitrogenous wastes maintaining acid-base and fluid balance maintaining electrolyte balance excreting nitrogenous wastes, maintaining electrolyte balance, and maintaining acid-base and fluid balance

Which of these is not an example of molecular homology? 1. use of dna and rna as genetic material 2.use of glycolysis as the first step in cellular respiration in both plants and animals 3. the lack of an igf-1 gene in prokaryotes 4. the use of aldolase b to break down fructose in bacteria, plants and animals