Diseases

2. are special white blood cells in the blood
6. a condition that happens when pathogens enter the body multiply and cause harm
7. are organisms that are more complex than bacteria that cannot make their own food
9. are specific proteins that attach to antigens keeping them from harming the body
10. any condition that interferes with the normal or proper functioning of the body or mind
12. are organisms that are so small that they can only be sen through a microscope
13. are single one celled organisms
15. are the smallest and simples pathogens

1. germs that cause disease or sickness
3. are one celled organism that are more complex than bacteria
4. preparation of dead or weakened pathogens that are introduced into the body to cause an immune response
5. are substances that send the immune system into action
8. is a communicable disease characterized by fevers, chills, fatigue, headaches, muscle aches and respiratory symptoms
11. is the body's response to injury or disease resulting in a condition of swelling, pain, heat or redness
14. the ability to resist the pathogens that cause a particular disease