A year containing an extra day. It has 366 days instead of the normal 365 days. The extra day is added in February, which has 29 days instead of the normal 28 days. Leap years occur every 4 years. 2016 is a leap year and so is 2020. Except that every 100 years special rules apply.
Best Answer: A average life span is about 1 year. Some live only 3 months, but others can live up to a couple of years. The lifespan of the average tick is about two years. Source(s): http://www.nyc.gov/html/doh/html/ehs/ehs... A fly is 3 days so i'm guessing somewhere around the lines of there.
rickettsii-infected adult ticks that had fed for 48 hours on rabbits, guinea pigs remained afebrile and seronegative when the ticks fed for <5 minutes (Table 3). The 66 afebrile patients and 26 febrile patients shared common characteristics with respect to height, weight, gestational age, and age. She was afebrile and her liver and spleen reduced to 2 and 3 cm respectively. In his medical history, the patient had 2 afebrile convulsions, at 6 months and 1 year old.