Simplify the following text for a Grade 10 native English-speaking person.
Original: The intestinal villi secrete the enzyme called lactase ( Î - D-galactosidase ) to digest it . This enzyme cleaves the lactose molecule into its two subunits , the simple sugars glucose and galactose , which can be absorbed .
Simplified: To digest it an enzyme called lactase cleaves the lactose into its two subunits glucose and galactose for absorption .