embryo

Planarian Anatomy Ontology Class Overview

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NAME:

  embryo


DEFINITON:

  Anatomical entity that comprises the organism in the early stages of growth and differentiation that are characterized by cleavage, the laying down of fundamental tissues, and the formation of primitive organs and organ systems. For example, for mammals, the process would begin with zygote formation and end with birth. For insects, the process would begin at zygote formation and end with larval hatching. For plant zygotic embryos, this would be from zygote formation to the end of seed dormancy. For plant vegetative embryos, this would be from the initial determination of the cell or group of cells to form an embryo until the point when the embryo becomes independent of the parent plant.


TERM DEFINITION CITATIONS:

  UBERON:0000922


TERM CITATIONS:

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TERM ID:

  PLANA:0000116


ABOUT THIS TERM:

embryo

  ↳is a reproductive system product and whole organism


  → sexual organism develops from embryo


  → ectolecithal embryo is a embryo


  → extraembryonic organ and oral-aboral axis of the embryo part of embryo



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