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.
prev 1 of 9 next. MTV. Kailyn Lowry âs feud with baby daddy Jo Rivera hit its breaking point on the season finale of Teen Mom 2, as Kailyn refused to settle child support for their son Isaac out of court after he cursed at her.TV. Jo then explained his reasoning for not wanting to get a job despite the fact that heâs welcoming a second child with girlfriend Vee Torres.