#1 Excel tutorial on the net. This example illustrates the ISERROR function in Excel. 1. For example, Excel displays the #DIV/0! error when a formula tries to divide a number by 0. The ISERROR function checks whether a value is an error and returns TRUE or FALSE. 2. Use the IF and the ISERROR function.
Ticks are also capable of surviving winter temperatures when they are able to find a host to feed from or a warm location to hide in during the coldest weather months. Generally, adult ticks will still be a threat when temperatures hover around 45 degrees Fahrenheit.
In one experiment, most of the nymphal deer ticks exposed to 75% humidity for 8 hours died, even after being returned to 96% humidity. In a typical house environment, unfed deer ticks are not likely to survive even 24 hours. Ticks on moist clothing in a hamper can survive 2-3 days. Ticks that have taken a blood meal may survive a bit longer but certainly not the 30+ days it takes to mature and bite again or lay eggs.