Examlex
Find an equation for the ellipse described.
-Center at (5, 3) ; focus at (12, 3) ; vertex at (14, 3)
Placenta
A temporary organ that develops in female mammals during pregnancy, connecting the fetus to the uterine wall for nutrient uptake, waste elimination, and gas exchange via the mother's blood supply.
Fetus
A developing mammal or human from the end of the embryonic period (usually two months after conception) until birth.
Three-Mountain Task
A cognitive development test designed to examine a child's ability to understand different perspectives and viewpoints.
Jean Piaget
A Swiss psychologist known for his pioneering work in child development, especially his theory of cognitive development that describes how children's minds develop and change as they grow.
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