The immune system then attacks that cell. Some white blood cells (B cells) recognize invaders, or antigens, directly. When a B cell recognizes and attaches to the antigen, it produces antibodies, which coat the surface of the virus or bacteria to stop it from multiplying or infecting other cells.This process is called neutralization.ther white blood cells (T cells) need help from cells that first ingest the invader and break it into fragments. The fragments are then presented to the T cells so that they can recognize and destroy them. These helper cells are called antigen presenting cells.
The Zone of Possible Agreement (ZOPA) Summary. Zone of Possible Agreement (ZOPA) is the blue sky range where deals are made which both parties to a negotiation find acceptable.
Zope is a community project concerned with a free and open-source, object-oriented web application server written in the Python programming language. Zope stands for Z Object Publishing Environment, and was the first system using the now common object publishing methodology for the Web. Zope has been recognized as a Python killer app, an application that helped put Python in the spotlight.