Answer:
a. All of these
Explanation:
All of these options are correct
tolerate conditions that are normally fatal
I’m not sure if there’s options to the question but the answer should be C. prokaryotes convert nitrogen-containing molecules into forms that can't be used by other organisms.
Because our bodies work to fight off unknown substances like bacteria
Yes because the human body is comprised of several different systems that must work together to carry out the various processes necessary for good health.