Here's an idea: Why not simply draw an ordinary 3 x 3 magic square with the numbers 1 through 9, then in each cell, draw a line under the number and add a denominator of 10. Bingo. You have a magic square comprised of the fractions 1/10 through 9/10, and the universal sum is 1.5 instead of 15. Something along those lines.
Stratified: I disagree with stratified, the answer is "simple" arrangement.
Cell Shape and Cell Arrangement
A karyotype is the chromosomal arrangement of a cell.
Every cell has a different shape,size and arrangement of organelles in it. For e.g. a nerve cell is long, while an RBC (red blood cell) is a stout round shaped one.
tetrad or packet