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Unit 3- Prenatal Development Study Guide • Fertilized egg. • Occurs when baby moves into the pelvis. • Name for baby during 2nd trimester. • Gene that determines if the trait is expressed. • 1 fertilized egg splits into 2 embryos. Unit 3- Prenatal Development Study Guide • Female Cell • Moment when the sperm fertilizes the ovum. • Thousands make up 1 chromosome • More than 1 egg is fertilized. • Inability to have children. Unit 3- Prenatal Development Study Guide • Options/ Solutions for Infertility • What is determined by your genes? • Prenatal Test & Risks • Miscarriage • Stillbirth • Purpose of the Umbilical Chord Unit 3- Prenatal Development Study Guide • Causes for birth defects • What happens to unfertilized eggs? • Role of Amniotic Fluid • Male / Female Baby • Organ where the baby grows and develops • What determines the sex of the baby? Unit 3- Prenatal Development Study Guide • What happens during 1st trimester- period of the zygote? • What happens during 2nd trimester- period of the embryo? • What happens during 3rd trimester- period of the fetus? Unit 3- Prenatal Development Study Guide • Describe 2 lifestyle changes that a pregnant woman may have to make to help her developing baby and identify why these changes would be important.
