New media, smaller equipment, and instant sharing, are all part of the new environmentalist tools for visual documentation.
<h3>What is Visual documentation?</h3>
This is defined as the process in which knowledge or information is managed and organized in a visual manner.
This however employs the use of equipment such as projectors and internet sharing devices to ensure that the information is disseminated to a large number of people.
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Cancer is basically a disease of uncontrolled cell division.
Answer:
Your answer would be betwen 400 to 700 nm
White blood cells fight disease
Answer:
Immune system of the body helps in fighting with the infectious agents that are foreign for the body. So the immune system protects us from infection.
When any foreign substance(antigen) comes in the body B-lymphocyte recognize it by binding the antigen through its receptor. After recognizing the antigen, B cell divides into antibody-producing plasma cell and memory cell.
Antibodies produced by plasma cells help in destroying the antigen by getting the antigen recognized by phagocytic cells or by complement activation.
B cells are antigen-presenting cell which present antigen to T cell and then T cell activates and produce chemicals that kill the antigen. Therefore the immune system has many immune cells that activate when an antigen comes in the body. This is how the immune system functions.