In the embryos of which organisms the third layer of cells first appeared?
| December 9, 2020 | education
In the embryos of flatworms, a third layer of mesoderm cells first appeared, in coelenterates 2 layers of cells (endoderm and ectoderm), and in other animals the third layer of cells appeared later.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
