The main types of immune cells are white blood cells. There are two types of white blood cells â lymphocytes and phagocytes. When weâre stressed, the immune systemâs ability to fight off antigens is reduced.That is why we are more susceptible to infections.here are two types of lymphocytes : B cells-produce antibodies which are released into the fluid surrounding the bodyâs cells to destroy the invading viruses and bacteria. T cells (see picture opposite) - if the invader gets inside a cell, these (T cells) lock on to the infected cell, multiply and destroy it.
Editor's Description: Introduction to Art: Design, Context, and Meaning offers a comprehensive introduction to the world of Art. Authored by four USG faculty members with advance degrees in the arts, this textbooks offers up-to-date original scholarship.
Browse by. 2/11/2012 1:35:00 PM Chapter 1: A World of Art Objectives: Chapter 1 is an introduction to A World of Art. This first chapter illustrates that all cultures produce art, and describes the similar roles that all artists have historically shared. After reading the chapter you should: 1. know the four roles of the artist. 1  2. understand how the process of seeing is both a physical and a psychological process, tempered by our fears, prejudices, customs and beliefs. 3. understand how the terms reception- extraction-inference play a role in the process of seeing.