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embryo

Multicellular diploid eukaryote in its earliest stage of development

Entitydevelopmental stage of animal developmental stage of plant class of anatomical entityQ33196

Instance of: developmental stage of animal
, developmental stage of plant
, class of anatomical entity
+1 more
Subclass of: organism
, particular anatomical entity

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

An embryo is the initial stage of development for a multicellular organism. In organisms that reproduce sexually, embryonic development is the part of the life cycle that begins just after fertilization of the female egg cell by the male sperm cell. The resulting fusion of these two cells produces a single-celled zygote that undergoes many cell divisions that produce cells known as blastomeres. The blastomeres are arranged as a solid ball that when reaching a certain size, called a morula, takes in fluid to create a cavity called a blastocoel. The structure is then termed a blastula, or a blastocyst in mammals.

Overview

All data

53 statements · 13% with external sources · numbers in brackets are citations

Location of creation: uterus
archegonium
egg
Different from: germ
human embryo
mammalian embryo
animal embryo
Followed by: fetus
sporophyte
larva
juvenile fish
Follows: zygote
Said to be the same as: embryo

On other databases

33 identifiers linking embryo across the web's reference databases

Data quality

statements

13%

externally sourced

Source last edited August 20, 2026. AIDB refreshes this page daily.

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Cite this page

AIDB. (2026). embryo (Q33196). Retrieved from https://aidb.si/e/embryo-Q33196