Mots Croisés Reproductive systemVersion en ligne Crossword puzzle about the vocabulary that we use in this chapter. Created by Mr. Valderruten. par Arturo Valderruten Vidal 1 The union of a female and male gametes. 2 Male sex hormone. 3 4 The glycoprotein layer surrounding the plasma membrane of mammalian oocytes is called "zona ......................". 5 The structure connecting the embryo or fetus with the placenta of the mother and transporting nourishment from the mother and wastes from the fetus is called the ............................. cord. 6 7 8 Female sex hormone. 9 A structure in the pregnant uterus for nourishing a viviparous fetus with the mother's blood supply; formed from the uterine lining and embryonic membranes. 10 11 12 The layer of cells surrounding the oocyte is called the ................. radiata. 13 14 Cell resulting of the union of male and female gametes. 15 16 17 18 9 weeks to birth. 19 20 Female gametes are also called egg cells, or ........ 14 13 12 7 20 11 2 3 17 4 1 18 16 10 19 9 15
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