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Stem Cells
Undifferentiated biological cells that can differentiate into specialized cells and can divide to produce more stem cells.
Early Embryos
The initial stages of development in an organism, following fertilization and before significant differentiation has occurred.
Central Nervous System
The complex of nerve tissues that controls the activities of the body. In vertebrates, it comprises the brain and spinal cord.
Neurons
The basic working units of the brain, specialized cells responsible for receiving, transmitting, and processing neural information.
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