Carbohydrates, lipids -- also known as fats -- nucleic acids, and proteins are the four major classes of biomolecules, or molecules that form the structural and functional components of cells. Each of these types of molecules consists of a carbon skeleton, or backbone, explain Drs.
Teen Mom Kailyn Lowry and her boyfriend Javi Marroquin are expecting their first child together. Credit: INFphoto.com. Kailyn Lowry is ready for baby No. 2! The Teen Mom 2 star is expecting her first child with husband Javi Marroquin, multiple sources confirm to Us Weekly. Kail is pregnant, a source confirms to Us.
Top Definition. cailyn. cailyn's are absolutely amazing girls. they get along with anyone unless you get on their bad side. they are very athletic and keep things real. they also make great girlfriends. they are reliable and will listen tot anything you say. whenever you get the chance too, meet a cailyn! i wish i was cailyn.