Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual differences | Personality | Philosophy | Social |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |

Biological: Behavioural genetics · Evolutionary psychology · Neuroanatomy · Neurochemistry · Neuroendocrinology · Psychoneuroimmunology · Physiological Psychology · Psychopharmacology

Triploblasty is a condition of the ovum in which there are three primary germ layers: the ectoderm, mesoderm, and endoderm. Additionally, the term may refer to any ovum in which the blastoderm splits into three layers. In higher and intermediate animals, all organisms arise from a triploblastic ovum. Triploblastic organisms are organisms which evolve from such an ovum.

Compare to diploblastic.

• Excerts from Oxford Dictionary of Biologypt:Triploblástico