title: Effects of continual mechanical agitation prior to cleavage in echinoderm eggs.
mesh_terms: D000818:Animals; D004447:Echinodermata; D005260:Female; D005306:Fertilization; D066298:In Vitro Techniques; D008938:Mitosis; D010063:Ovum / Q000166:cytology*; D010812:Physical Stimulation