Couldn't confirm presence of Flash 7 or higher because JavaScript was disabled.
We highly recommend that you install Flash 7 or higher and that you enable JavaScript.
Get Flash ---
I really do have Flash installed.
What follows is a plain HTML version of the puzzle.
Ch. 16 - The Reproductive System
Across
1. An early embryonic phase consisting of rapid mitotic cell divisions without intervening growth periods; product is a blastocyst.
3. Process of ovum formation.
7. Culmination of pregnancy; giving birth.
8. Temporary organ formed from both fetal and maternal tissues that provides nutrients and oxygen to the developing fetus, carries away fetal metabolic wastes, and produces the hormones of pregnancy.
10. Fetal membrane that forms a fluid-filled sac around the embryo.
13. Fusion of the sperm and egg nuclei.
15. A minute cell produced during meiosis in the ovary.
16. Tube through which the ovum is transported to the uterus. Also called fallopian tube or oviduct.
17. Accumulation of cells in the blastocyst from which the embryo develops.
18. Highly convoluted tubes within the testes; form sperm.
Down
2. That portion of the male duct system in which sperm mature. Empties into the ductus (or vas) deferens.
3. Female sex organ in which ova are produced; female gonad.
4. Developmental stage extending from gastrulation to the end of the eight week.
5. The process of sperm (male gamete) formation; involves meiosis.
6. Fluid mixture containing sperm and secretions of the male accessory reproductive glands.
9. An enzyme-containing structure covering the nucleus of the sperm.
11. Fertilized egg.
12. Stage of early embryonic development; the product of cleavage.
14. Outermost fetal membrane; helps form the placenta.