Why is it important that the ovarian and uterine cycles are synchronized? 1. Why must the volume of the secondary oocyte be larger than that of the fertilizing sperm? their 4. Use the grid below to construct two timelines: one timeline that shows when embryological and fetal development occur; and one timeline that shows the three trimesters of pregnancy 7 8 00 6 9 9 Postnatal 2 3 0 4 5 3 months of pregnancy

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