Question

When an Angry child's in arm of her mother punches his mother with fist there is no response from the mother because of small pressure but when he bites her mother with his Tiny Sharp teeth mother reacts at once why

Answer 1

As we all know that as small as the surface area the more is the pressure on the point and vice versa in the words of physics but when you understand it biologically here you get the answer as our jaw muscles are much much more stronger than our arms so the effect increases and let me remind you the tooth is also the strongest bone of our body after Humerus