Call the dentist office that you go to and get an appointment as soon as you can. Avoid chewing on that side of your mouth.
Keratin is what makes up hair, horns, claws, hooves and more. It additionally protects epithelial cells from damage or stress. However, keratin is extremely insoluble in water and organic solvents. You are unlikely to find it in said solvents.
The best answer is A the precipitation cycle or better known as the water cycle.
Homeostasis Refers to the bodies need to reach and maintain a certain state of equilibrium.
I would say that they can't swallow. that's why they have the umbilical cord.