പല്ല്/ TEETH/ PSC MOCK TEST/ HUMAN BODY / DIGESTIVE SYSTEM/ദഹനവ്യവസ്ഥ

Teeth are part of your digestive system. They break down foods by crushing or cutting them before you swallow. Most humans have 32 teeth, although some have more and some have fewer. Enamel (the protective outer layer of your teeth) is the hardest substance in the human body. digestive system psc biology malayalam digestive system psc biology psc malayalam biology psc human digestive system malayalam, biology psc mock test malayalam psc biology mock test mock test malayalam psc psc mock test in malayalam psc mock test malayalam prelims biology mock test psc