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.
In general, the risk for developing Lyme disease after a tick bite is only 1 - 3%. The risk varies depending on different factors: 1  The longer the tick has fed, the greater the risk. 2  Nymph ticks carry a greater risk than adult ticks, probably because they are often too small to be detected (about the size of a pinhead).he exact time of year for risk depends on a geographic region's seasons and how they affect the tick's breeding cycle. In general, the highest risk for Lyme disease onset is from June through August, and the lowest risk is from December through March. View & Print In-Depth Report Â».