#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.
Adult house flies are affected by temperature as much as their young, becoming inactive when temperatures fall below 45 degrees and dying when they fall below 32. Because house flies thrive in hot environments and die off in colder ones, they are generally a summertime pest, rather than an autumn or winter one.