Study World (Official) 👨🏻🎓
الذهاب إلى القناة على Telegram
Study World is a platform for all sort of competitive Examinations Preparation in #Jhansi Mission: Our Mission is to bring the Job in your home.
إظهار المزيد2 015
المشتركون
-224 ساعات
-77 أيام
-1230 أيام
أرشيف المشاركات
Why are teeth not part of the skeletal system?
Teeth, like bones, contain calcium, phosphorus, and other minerals. But there's one substance that teeth don't have—collagen. Collagen is a type of protein, considered as “the glue that holds the body together”. Unlike a broken bone, a broken tooth cannot mend itself.
