Biod 121 Module 6 Exam 2024-2025

what does the placenta do? 1. provide nutrients from the mother's blood to the fetus 2. allow for the transfer of waste from the fetus into the mother's system for excretion list and describe the developmental stages of pregnancy 1. Fertilization (Day 0): An egg and sperm unite and produce a zygote. 2. Blastogenic stage (Day 1 to 14): A period of rapid cell division Day 14: An embryo is formed. 3. Embryonic stage (Week 2 to 8): The organ system develops.Week 5: The heart begins to beat. Week 8: The embryo is now known as a fetus. 4. End of first trimester: Most organs are formed, and the fetus can move. 5. Fetal Stage (Week 9 to 40): Period of continual growth and development why is extra iron needed during pregnancy? to increase blood volume to provide iron stores to the fetus -animal products and fortified breakfast cerealsiron deficiency anemia of mom can lead to preterm delivery, low birth eight infants, and increased risk for fetal death calcium is needed for what in pregnancy? formation of the baby's teeth, bones, muscle, and heart -if moms levels are inadequate, fetus will rob mom of her calcium stores true or false: