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.
Like in science, which requires molecules to form a substance, in art too the elements are required to form an art work. Artists manipulate elements such as line, space, texture, shape and color and apply the principles of design to form an art.mportance of Art and Design Elements. A good art work, whether it is a painting, sculpture, interiors or a website design, all starts at a design stage.