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Place the following elements in order of increasing electronegativity. Ba S Li
Nourishment
The substances necessary for growth, health, and good condition, typically obtained from food.
Blastocyst
An early stage of embryonic development characterized by a sphere of cells surrounding a fluid-filled cavity, shortly before implantation in the uterus.
Placenta
An organ that develops in the uterus during pregnancy, providing oxygen and nutrients to the growing baby and removing waste products from the baby's blood.
Umbilical Cord
A flexible cord-like structure containing blood vessels that connects a fetus in the womb to its mother's placenta, providing oxygen and nutrients.
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