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Q: What is the picture in a map key that represents an object called?
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What does each dot on the map represent?

Whatever the key to the map says it represents.


Why is a dichotomous key important?

A dichotomous key gives you two options. It would be important for the two options to be opposites to avoid any overlap or exclude an option. Otherwise, you might not know which option to choose. For example, you have an object in your hand. The key asks if your object is round or square. But what if your object is a triangle? Then you couldn't choose either option. So a better key would ask whether the object is square or not square. That way everything is included. from: Shelly E http://answers.yahoo.com/question/index?qid=20080507191422AAPm3id


What is used to determine if a signed driver has been altered?

The digital signature value is a protected checksum. A protected checksum is the value of an algorithmic function that is dependent on the contents of the data object and is stored together with the data object. Its purpose is to protect the data object against active attacks that attempt to change the checksum to match changes that a malicious individual has made to the data object. Often, a digital signature is a two key thing. One key is used to encrypt, and the other key is used to decrypt. The decryption key is the public key that everyone knows, while the encryption key is the private key that only the encrypter knows. This is a multi-level thing, where certificates are used to certify that a particular public key is valid, using private keys of higher and higher authority. Eventually, you reach root authority, and that is a list of certificates installed in your computer that you trust explicitly. The two key algorithm is so good, that it is nearly impossible to figure out the private key based on the public key and/or the document itself.


What are the symbols called the language of the map?

Collectively, the symbols, with their meanings, on a map are called a 'legend'.


What tells you what symbols on a map represent?

The key of the map explains all the symbols used on the map.