Which of the following is known as the “growth center” of a bone? A) Osteoclast B) Penosteum C) Osteoblast D) Epiplysis Related MCQs: Which of the following is essential vitamin for bone and teeth formation? An organ that receives food from Pharynx and carries it to the stomach Is known as a? Which test is also known as the variance ratio test? K2 is also known as?