BIO Print Chapter 28 Pregnancy and Human Development Exam

Print Chapter 28 Pregnancy and Human Development ExamCells on the dorsal surface of the two-layered embryonic disc migrate to form a raised groove known as the ________. A) blastocyst B) amnion formation C) germ cell formation D) primitive streak) The result of polyspermy in humans is ________. A) multiple births B) a nonfunctional zygote C) interruption of meiosis D) mitotic insufficiencyIt is impossible for sperm to be functional (able to fertilize the egg) until after ________. A) the tail di...