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Studies conducted with children of difference ages and "Princess Alice" showed that children who believe that a fantasy character might act on their behalf
Embryonic Stem
Embryonic stem cells are undifferentiated cells that can differentiate into various cell types and have the potential for unlimited, or prolonged, self-renewal.
Placental Cells
Cells that make up the placenta, an organ that connects the developing fetus to the uterine wall to allow nutrient uptake, waste elimination, and gas exchange via the mother's blood supply.
Muscle
(1) A tissue specialized for contraction. (2) An organ that produces movement by contraction.
Donor Cells
Cells taken from one organism or individual to be used in a medical treatment or scientific research in another.
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