Each time you pay for your purchase with a registered Starbucks Card or Starbucks app at a participating StarbucksÂ®, Evolution Freshâ¢, or TeavanaÂ® store, or online at store.starbucks.com or Teavana.com, you will earn 2 Stars per $1 spent on the amount of your purchase that is accruable (eligible to earn Stars).
Fertilization and Embryo Development. Following ovulation, the egg is capable of fertilization for only 12 to 24 hours. Contact between the egg and sperm is random. Once the egg arrives at a specific portion of the tube, called the ampullar-isthmic junction, it rests for another thirty hours. Fertilization â sperm union with the egg â occurs in this portion of the tube. The fertilized egg then begins a rapid descent to the uterus.
The egg travels very rapidly from the ovulation site to the fertilization site in the oviduct. The fertile life of the egg is shorter than that of the sperm. Ovulated eggs remain fertilizable longer (10â20 hours) than they remain capable of being fertilized and developing into normal embryos (8â10 hours). The likelihood of embryonic death increases as the time beyond this interval increases.