Photomicrograph of a developing sea urchin embryo, mesenchyme blastula stage at the onset of gastrulation, DIC, mag. 160x (at 24 x 36 mm). This stage, as gastrulation begins, is marked by the ingression of primary mesenchyme cells into the blastocoel from the flattened vegetal plate, and is just before invagination. (c) Herve Conge
Credit
ISM
/ Hervé CONGE
Dimensions
4252 x 2835 pixels
Print Size @ 300 dpi
14 x 9 inches / 36 x 24 cm