Embryo

In biology, an embryo refers to the early developmental stage of an organism, typically before it has become a fetus or mature individual. Embryos can be found in various stages of development in animals, plants, and even some fungi.

In animals, the early embryo typically goes through a process of cell division and differentiation, during which the cells begin to specialize and take on different roles in the developing organism. This process can be seen in the formation of various organs and structures, such as the nervous system, heart, and limbs.