All spiders use venom to kill their prey, but many spiders are not nearly. as aggressive or dangerous as they are presented in urban legends and the media. Spider identification. requires specialized knowledge and sufficient magnification.
The definition of surly is someone who is bad-tempered, or something that is threatening such as poor weather. An example of someone who would be described as surly is a grumpy person who frowns at everyone who comes near him. YourDictionary definition and usage example.
A surrogate key is a unique identifier used in databases for a modeled entity or an object. It is a unique key whose only significance is to act as the primary identifier of an object or entity and is not derived from any other data in the database and may or may not be used as the primary key.