pathogens

2. A plant-like organism that does not make chlorophyll
8. a type of bacteria that can cause sexually transmitted infections such as chlamydia and trachoma.
9. a virus that can cause birth defects in babies born to infected mothers.
10. a very simple microorganism that infects cells and may cause disease.
12. a virus that can cause chronic liver disease and liver cancer.
13. a virus that attacks the immune system and can lead to AIDS.
15. bacteria that cause a respiratory illness

1. virus a virus that causes the flu.
3. a virus that causes inflammation of the liver.
4. a type of bacteria that can cause food poisoning
5. worms that can live inside the human body and cause illnesses such as tapeworms, hookworms, and roundworms.
6. bacteria that can cause food poisoning and other illnesses.
7. small single cell organisms
11. a virus that can cause a fatal infection of the brain and nervous system.
14. a virus that can cause severe and often fatal hemorrhagic fever.