1. It is made up of white and red blood cells and platelets and carries oxygen to organs around
the body answer
2. This is developed by the body's defense system to destroy pathogens.

3. Resistance to a particular disease.

4. A wall-like, first line of defense against disease, illness and pathogens.
einer
5.it trash pathogens and foreign mucus and cilia
6.this is a part of a pathogen that signal the body immune system to respond