Experimental studies on the site of propagation of the fertilization-wave in the sea urchin egg.
D000818:Animals; D002455:Cell Division; D005260:Female; D005306:Fertilization; D008297:Male; D008938:Mitosis; D010063:Ovum; D010232:Paraffin; D012617:Sea Urchins / Q000196:embryology*; D013094:Spermatozoa
D010232:Paraffin