Appendicitis occurs when the appendix becomes blocked, often by stool, a foreign body, or cancer. Blockage may also occur from infection, since the appendix swells in response to any infection in the body.
A familial generation is a group of living beings constituting a single step in the line of descent from an ancestor. In developed nations the average familial generation length is in the high 20s and has even reached 30 years in some nations.
Generation length is of interest in two distinct contexts: In âdeep ancestryâ, where early studies in anthropology and genetics over several millennia typically use average generation lengths of 25, 20 or even 15 years.