Extinction _____. only happens above the species level cannot happen to more than one species at a time has happened to over 99% of species that ever lived on earth happens when a species or population dies out.
Medical use. Nivolumab is used as a first line treatment for inoperable or metastatic melanoma in combination with ipilimumab if the cancer does not have a mutation in BRAF, and as a second-line treatment for inoperable or metastatic melanoma following treatment of ipilimumab and, if the cancer has a BRAF mutation, a BRAF inhibitor.
Novarel is used for: Treating fertility problems in certain women who have not gone through menopause. Treating certain testicular development problems and stimulating the development of secondary sexual characteristics in certain patients. It is also used to treat boys 4 to 9 years old who have testicles that have not moved into the scrotum.