A major function of this mucus is to protect against infectious agents such as fungi, bacteria and viruses. The average human body produces about a litre of mucus per day. Bony fish, hagfish, snails, slugs, and some other invertebrates also produce external mucus.n vertebrates, mucus (/mjuËkÉs/ MYOO-kÉss; adjectival form : mucous) is a slippery secretion produced by, and covering, mucous membranes. Mucous fluid is typically produced from cells found in mucous glands.
The basic structure of an IF statement in an Excel formula is: =IF(Condition, Value if condition is true, Value if condition is false). After testing the condition, Excel returns either one of the two supplied values, based on whether the condition evaluated to true or false.ultiple IF Statements. Multiple IF statements let you evaluate a condition that has more than two possible outcomes. To create a multiple IF statement, replace the value returned if the condition is evaluated to false in the first statement by a second IF statement, enclosed in its own set of parentheses.
The Microsoft Excel IF function returns one value if the condition is TRUE, or another value if the condition is FALSE. The IF function is a built-in function in Excel that is categorized as a Logical Function. It can be used as a worksheet function (WS) in Excel. As a worksheet function, the IF function can be entered as part of a formula in a cell of a worksheet. Please read our IF-THEN-ELSE (VBA) page if you are looking for the VBA version of the IF statement as it has a very different syntax.