Уже доступно! Исследование Telegram 2025 — ключевые инсайты года 
Study World (Official) 👨🏻🎓
Открыть в 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.
Больше2 084
Подписчики
-424 часа
-97 дней
-2730 день
Архив постов
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.
