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.
In order to divide in Excel you simply use the / operator. An example of this is shown in the above spreadsheet on the right. This formula, consists of the = sign, followed by two numbers, separated by the / operator. This simple Excel division formula divides the number 15 by the number 4, and returns the result 3.75.