Look it up on google , i had this same question and google helped me. i can’t remember the answer or i’d tell u
They are all the examples of organ system.
Answer:
milk teeth will break as u grow up
and
permenant teeth will never break when u r young but as u grow older many people teeth will break
Explanation:
milk teeth will break as u grow up
and
permenant teeth will never break when u r young but as u grow older many people teeth will break
