You are presented with the question "What are on the ocean floor?" and the following answer choices: 
- alveoli
 - bacteria
 - animals
 - stations
 - body water
 - mines
 - barnacles
 - alluvial

Now knowing that organisms cluster around hydrothermal vents in the ocean floor and bacteria that have been found at hydrothermal vents are of great interest, choose the best answer.


 

  bacteria       