Unit 3- Prenatal Development Study Guide Fertilized egg. Occurs when baby moves into the pelvis. Name for baby during 2 nd trimester. Gene that determines.

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Presentation transcript:

Unit 3- Prenatal Development Study Guide Fertilized egg. Occurs when baby moves into the pelvis. Name for baby during 2 nd 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 1 st trimester- period of the zygote? What happens during 2 nd trimester- period of the embryo? What happens during 3 rd 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.