I
I. Creation
0.1 mm
A human begins as one cell, about a tenth of a millimeter across.
1
I. Creation
16 cells
It divides without growing. Each new cell is half the size of its parent, so by the fourth day sixteen or more fill the space of the first.
2
I. Creation
1859
Darwin's phrase. Of these five, the radiolarian and the diatom are each a single cell.
3
I. Creation
3 bands
Of all the armadillos, only the three banded ones can roll into a complete ball.
4