Which of the following describes the embryonic period?Group of answer choicesall of thesethe period during which the umbilical cord developsthe period during which the major organs and structures of the organism first developthe period during which the zygote moves down to the uterus and begins to implant in the lining

During which stage of development is the egg fertilized by the sperm and the zygote undergoes cleavage?Multiple choice question.Embryonic periodFetal periodPre-embryonic period

Which of the following occurs during the germinal period?Multiple choice question.The heart begins to beat.The zygote becomes an embryo.The zygote attaches to the uterine wall.The neural tube develops.

Match the following stages of human development with the best description.InstructionsDrag and drop application.Embryonic periodEmbryonic period drop zone empty.Fetal periodFetal period drop zone empty.Pre-embryonic periodPre-embryonic period drop zone empty.Weeks 2-8; implantation occurs; nervous system, limb buds and all other systems are developing.Egg is fertilized by sperm; zygote begins to divide.Third - ninth month; organ systems complete development.

At what stage of prenatal development do the beginnings of organs appear?Multiple choice question.fetal periodgerminal periodembryonic periodconception

Which of the following is the correct description of the prenatal developmental stages?Multiple choice question.Conception begins with the embryonic period; this is followed by the germinal period and finally the fetal period.Conception begins the germinal period; this is followed by the embryonic period and finally the fetal period.Conception begins with the germinal period; this is followed by the fetal period and finally the embryonic period.