Human Health

4. Caused by genetic factor or lifestyle
5. Foreign substance that comes from outside the body and induces the production of antibodies
8. membrane A membrane that lines the digestive tract and respiratory tract
12. White blood cells engulf and digest the pathogens using enzymes through...
14. The body produces its own antibodies when stimulated by antigens
15. Made of a tough layer and is difficult to be penetrated by microorganisms
16. Animals that transmit pathogens
17. Ability of the body system to resist pathogens before it is infected
18. All virus, some bacteria, protozoa, fungi and worms

1. Can be transmitted from one individual to another
2. Earwax, tears and vaginal secretions also function as....
3. Abnormal condition of body or mind that causes discomfort,difficulty to function or stress to an individual
6. Contains antigens obtained from a part or the whole structure of a weakened or dead virus or bacterium
7. Victim who is weak and easily infected
9. Spread through sexual intercourse
10. The body gains antibody from external sources
11. Example of a disease that can be transmitted through contact
13. Protein produced by white blood cells into the bloodstream in response to antigens