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 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

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.

In sexual reproductiona) a zygote is formed from the fusion of an egg and sperm.b) an embryo is formed from the fusion of egg and sperm.c) a zygote is formed from an egg from a male and an egg from a female.d) an offspring is formed that is identical to one of the parents

Fertilization is the fusion of sperm and egg to make a diploid zygote. Is the zygote stage unicellular or multicellular?

Which occurs during embryonic development immediately after fertilization?Multiple choice question.MorphogenesisGrowthDifferentiationCleavage