Answer
The sheath serves as the habitat of the organism.
Work Step by Step
The sheath, aside from being the habitat of the organism, also acts as an aid for protection for the bacteria.
You need to log in to continue
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.