Electron microscopy of the centrifuged sea urchin egg, with a note on the structure of the ground cytoplasm.
D000818:Animals; D047308:Arbacia; D003593:Cytoplasm; D008854:Microscopy, Electron; D008928:Mitochondria; D010063:Ovum; D012617:Sea Urchins
OVUM; PROTOPLASM