In the germinal period after 24 hrs, the ______ divides into 2 separate cells. One week after conception, which of the following is true? 1) organism = zygote (contains over 100 cells) 2) organism = embryo (contains over 100 cells) 3) organism = fetus (contains over 100 cells) 4) organism = blastocyst (contains over 100 cells)
