The implantation of a fertilized egg is estimated to take place about 9 days (+/-) after ovulation. So, once conception has taken place, the blastocyst has to travel up into the uterus, and then implantation takes place once the blastocyst has found the spot in the uterine wall that it wants to attach to.
The definition of gratuity is a sum of money given to someone who provides service or a favor as a way to show graciousness or thankfulness. An example of gratuity is a tip left for a server at a restaurant. gratuity. pl. gratuity.
Save. A gratuity is either an extra charge that a restaurant adds to a bill -- usually for serving a large party -- or an optional payment that a customer makes that is similar to a tip. Most states do not charge sales taxes on voluntary gratuities.States charge a sales tax on a mandatory gratuity under certain conditions.ratuity Size. The size of the gratuity affects sales taxes. Some states, such as Texas, do not require a sales tax when the gratuity is less than 20 percent of the bill for the meal, not including tips and the standard sales tax.