
Embryo - Wikipedia
A newly developing human is typically referred to as an embryo until the ninth week after conception, when it is then referred to as a fetus. In other multicellular organisms, the word embryo can be used …
Embryo | Description, Characteristics, & Development | Britannica
3 days ago · An embryo is the early developmental stage of an animal while it is in the egg or within the uterus of the mother. In humans the term is applied to the unborn child until the end of the seventh …
Embryo & Fetal Development: Complete Week-by-Week Guide ...
This astonishing process of embryo and fetal development is not only foundational to human life but also a marvel of precision, timing, and coordination at the molecular, cellular, and structural levels. …
Embryo vs. Fetus: How to Tell Them Apart - Verywell Health
Oct 14, 2025 · An embryo is the early stage of development and lasts from week five to week 10 of pregnancy. A fetus is the later stage of development and lasts from the end of week 10 until birth. An …
What Is an Embryo? A Look at Early Biological Development
Jul 21, 2025 · An embryo represents the initial stage of development in a multicellular organism. This period is characterized by rapid cell division and the establishment of the basic body plan.
Embryo - Definition and Examples - Biology Online Dictionary
Aug 13, 2023 · An embryo is a newly fertilized egg (zygote) up till the eighth week of development as it transforms through the morula, blastula, gastrula, and organogenesis stages.
Embryo Development- Definition, Stages, Types and Examples
Aug 5, 2025 · Embryo development is a complex process that begins with fertilisation, followed by cleavage, morula, blastocyst, and organogenesis. The embryonic stages in the human embryo are …