What is the First Bilateral Animal?

Embryology is a science that studies the formation and development of embryos of animals and plants, and describes how to develop an embryo from a fertilized egg to understand the characteristics and laws of the development of various plants and animals. Can also be broadly understood as the study of sperm, egg generation, maturation and fertilization, and the process of fertilized egg development to adulthood.

[pi ti xué]

17th century,

Vertebrate embryology

Found in protozoa

Since the end of the 19th century, people have begun to discuss

Rear

As recently as the 18th century, the concept of Western human embryos was preformed: the idea was that the semen contained embryos-prefabricated, miniature babies, or "dwarfs"-which simply became bigger during development. The competitive explanation for embryonic development is

At present, embryos have become an important research area for studying genes that are controlled during the development of genes (such as morphogens), which link mutations in cell signaling, their importance for the study of certain diseases, and in stem cell research.