Prenatal Development Answers

A(n) __________ is a one-celled organism formed by the union of a sperm and an egg. A.zygoteB.blastocystC.embryoD.fetus

The __________ stage is the third stage of development and lasts from two months through birth. A.embryonic B.fetal C.prenatal D.germinal

Which of the following does not occur during the embryonic stage? A. The bones become fully developed. B. The tail begins to recede. C. The heart, brain, and spinal cord develop. D. The eyes and ears begin to form. Please select the best answer from the choices provided

__________ occurs when the mother’s body begins to fight off foreign blood protein produced by the fetus. A.Non-teratogenesisB.Rh-factor incompatibilityC.Reduced blood oxygenationD.A neural tube defect

Which prenatal stage begins when a zygote is created through fertilization? A. fetal stage B. zygote stage C. embryonic stage D. germinal stage Please select the best answer from the choices provided

In which prenatal stage is a fetus' genitalia clearly male or female? A. zygote stage B. germinal stage C. embryonic stage D. fetal stage Please select the best answer from the choices provided

The organ that provides oxygen and nutrition to the fetus and filters out bodily wastes is the __________. A.heart B.zygote C.blastocystD.placenta

All of the following are possible causes of preeclampsia except __________.A.genesB.stressC.low birth weightD.autoimmune disorders

Major organs form and cells continue to divide in the __________ stage.A.zygoteB.germinalC.embryonic D.fetal

The __________ is the age at which a fetus can survive in the event that it is born early. A. prenatal age B. age of viability C. age of sustainability D. gestational age Please select the best answer from the choices provided