10. mouth
11. salivary glands
12. esophagus
13. stomach
14. small intestine
15. large intestine
Answer:
eubacteria and archaebacteria
He needs to know if the disorder occurs in the members of family (it would suggest genetic cause of a disease) or in housemates/colleagues from work (it would suggest environmental cause if sick people share the environment)
Carbon, Hydrogen, and Oxygen
Ratio: 6:12:6