Recently Engineering and Science Have Made People Decreasingly Peripheral to Operations

question 59

True/False

Recently engineering and science have made people decreasingly peripheral to operations.

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Definitions:

Estrogen

A group of steroid hormones responsible for the development and regulation of the female reproductive system and secondary sex characteristics.

Progesterone

Steroid hormone secreted by the corpus luteum and one of the hormones secreted by the placenta.

Ductus Arteriosus

A fetal blood vessel that allows blood to bypass the lungs, which closes soon after birth to establish the regular circulatory path.

Ductus Venosus

A fetal blood vessel that connects the umbilical vein to the inferior vena cava, allowing oxygenated blood from the placenta to bypass the liver and enter the systemic circulation.