DEVELOPMENTAL BIOLOGY SEVENTH
EDITION COMPREHENSIVE EXAMINATION
TEST 2026 CERTIFICATION EVALUATION
PRACTICE BANK
◉ Implantation
Answer: Attachment of blastocyst to uterus
◉ Syncytiotrophoblast
Answer: Invasive outer trophoblast layer
◉ Cytotrophoblast
Answer: Inner trophoblast layer
◉ HCG
Answer: Hormone maintaining corpus luteum early in pregnancy
◉ Embryogenesis
Answer: Formation of three germ layers
, ◉ Ectoderm
Answer: Forms skin and nervous system
◉ Mesoderm
Answer: Forms muscle, bone, blood
◉ Endoderm
Answer: Forms digestive and respiratory systems
◉ Organogenesis
Answer: Formation of organs
◉ Amnion
Answer: Sac filled with fluid protecting embryo
◉ Amniotic fluid
Answer: Protects and allows movement
◉ Yolk sac
Answer: Forms early blood cells and germ cells