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.
The following combination of factors is used to determine the grade of an egg: 1  Distinctness of the yolk shadow outline.The shadow of the yolk outline cast on the shell, when the egg is twirled in the candling process is one of the best indicators of interior quality.