Dr. Lange discovers a colony of bacteria living in an

extremely acidic environment. While observing the colony,

she finds that the bacteria are autotrophs.

Which best describes the bacteria discovered by the

scientist?

They are probably archaebacteria because they are

autotrophs.

They are probably eubacteria because they are

autotrophs.

They are probably eubacteria because the colony lives in

an extreme environment.

They are probably archaebacteria because the colony

lives in an extreme environment.