| A | B |
| The fetus becomes more active and has hair, eyelashes, and eyebrows by the end of which trimester? | Second |
| During which trimester of pregnacy does weight gain of the fetus increase rapidly while fetal movement decreases? | Third |
| The fetus drops into the pelvis of the mother during wich month? | Ninth |
| Slight fetal movements are first felt by the mother between which months? | Fourth and fifth |
| What occurs during the period of the zygote? | Fertilized egg implants in the lining of the uterus. |
| What occurs during the period of the embryo? | Embryonic cells develop into major organs. |
| When does conception occur? | Fertilization |
| What does the father contribute to conception? | Chromosomes |
| What is the period before birth know as? | Prenatal |
| Sandra is seven months pregnant. In what stage of development is the baby? | Fetus |