Some objectors and deniers to the scientific miracles of Qura’n in describing stages of embryonic development , claim that the term mudghah used by Qura’n to describe the embryo is vague . Moreover , the description of mudghah as a little piece of meat of a size that can be chewed , was not known before and it was lately introduced due to the presence of somites on the surface of developing embryo that simulate the teeth imprints on chewed gums. They claim that this is not only an imaginary interpretation but also incorrect , because for an embryo to be in the size of a chewed piece of meat ( size reaching about 20-30 milliliters ) one should wait till the embryo is 8 weeks old to fulfill the meaning of mudghah , whereas at the time alleged to be the duration of mudghah (26-27 days) the embryo’s size is not more than 4 millimeters..