Both isotonic and isosmotic refer to the strength of the solution,  for example, how much solute is dissolved in the solution. Isotonic  refers to the ionic strength of a soâ¦lution while isosmotic refers  to the number of molecules of solutes in a biological solution, for  example, sugar concentration.
The egg is strongest from point to point and easily crushable at the sides. Breaking an egg with steady equal pressure at each end of the egg is remarkably hard to do when considering the thin shell involved.
If you keep the egg upright and try to apply pressure at  the top and bottom, the egg won't break aâ¦s easily as much as when  you apply it in the middle. The shape of the egg gives greater  tensile strength to the ends but the middle is comparitively  fragile.