A group of college students working on a project on bio-gas have found some bacteria in the bio-gas plant. These bacteria can utilize methane as their source of energy and do not need oxygen for their survival. The kind of bacteria is Archaebacteria.
the immune system is the body system that fights infection's my friend
I believe the answer is b hope this helps
The answer for this question is a. DNA
I have never heard of biofilms I'm so sorry