1. Cell Division:
The zygote undergoes rapid cell division through mitosis, resulting in an increase in the number of cells. This process forms a cluster of cells called a morula, which further develops into a hollow ball of cells known as the blastocyst.
2. Growth:
As cell division continues, the cells enlarge, and the overall size of the embryo increases. This growth process is crucial for the proper development and functioning of the organism.
3. Differentiation:
The cells in the developing embryo undergo differentiation, which is the process by which they become specialized to perform specific functions. This involves changes in gene expression, leading to the formation of different types of cells, such as muscle cells, nerve cells, skin cells, and so on.
Through the coordinated processes of cell division, growth, and differentiation, the single-celled zygote develops into a complex and organized multicellular organism with specialized cells capable of carrying out various functions.