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In which artifact are observed effects due to awareness of the treatments rather than a genuine response to the treatments?
Placenta
An organ connected to the uterine wall and to the fetus by the umbilical cord. The placenta serves as a relay station between mother and fetus for the exchange of nutrients and wastes.
Prenatal Activity
Activities or behaviors exhibited by a fetus in the womb, including movements and responses to different stimuli.
Zygote
The initial cell formed when a new organism is produced by sexual reproduction, resulting from the union of sperm and egg cells.
Second Trimester
The period of pregnancy from the 13th to the 26th week, often marked by a decrease in pregnancy symptoms and the growth of the fetus becoming more evident.
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