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Welcome to the Human Prenatal Development (HPD) Unit
The Human Prenatal Development Unit guides students through the origins of individual human life with scientific rigor and deep respect for the dignity of the human person. Each Investigation integrates hands-on experimentation, critical thinking, and opportunities for meaningful reflection.
– A unit designed with respect for the wonder of human life.
Investigation 1: Mitosis and Human Chromosomes
In this Investigation, students learn how to analyze human karyotypes and explore the genetic foundations of prenatal development.
Investigation 2: Meiosis and Gamet Formation
In this Investigation, students examine how meiosis produces human gametes and explore how fertilization restores chromosome number to initiate human development.
Investigation 3: Maternal–Fetal Interactions
In this Investigation, students study maternal–fetal circulation and examine how nutrients, gases, and waste products are exchanged to support prenatal growth.
Investigation 4: Preparing for Birth - Late Fetal Development
In this Investigation, students explore the prenatal environment during late fetal development and examine how factors such as amniotic fluid, space constraints, and ongoing maternal support prepare the developing human for birth.
Next Generation Science Standards (NGSS): Human Prenatal Development
