The organ systems rudimentarily form during the:
A)fetal period.
B)neo-natal period.
C)embryonic period.
D)pre-embryonic period.

Question

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The embryonic period is the stage of development during which the rudiments of all major organ systems are formed. This period takes place in the first 8 weeks of gestation. The fetal period, which follows the embryonic period and lasts from week 9 until birth, is characterized by the growth and maturation of the organs and tissues that were formed during the embryonic period. The pre-embryonic period refers to the first week of fertilization, during which the zygote undergoes cleavage and implantation but does not yet have differentiated organs or tissues. The neo-natal period is the first month of postnatal life, after birth, and is characterized by adaptation to extrauterine life.

The Organ Systems Rudimentarily Form During The