#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.
If you find a tick on your dog, it is not necessarily cause for alarm. Ticks must be engorged from 24 to 36 hours before they are able to transmit Lyme disease and only 25% of nymphs and 50% of adults carry Lyme in the highest endemic areas.