Complex sentence: Ductless glands are glands that secreat their product directly onto a surface rather then through a duct, i.e. Goblet cells in the Epithelial surface of the digestive, respiratory, urinary and reproductive systems.
Split into simpler sentences: Ductless glands are glands that secrete their product directly onto a surface rather then through a duct. Examples are the goblet cells in the epithelial surface of the digestive, respiratory, urinary and reproductive systems.