Which of the following statements is incorrect

about prokaryotic cells?

A prokaryotic cell may possess all of the following except:

Microbes that naturally and mutualistically live in the human body and

provide protection and production of essential vitamins and other compounds are

called the ________.

All cells possess a cell wall.

Which

of the following best describes bacterial endospores?

The bacterial shape of the cells in the

scanning electron micrograph shown in Figure 1.1 would best be described as

________.

All pathogens known to infect humans have

been identified.

All six

major categories of microbes are using

Which of the following is not

equal

to 1 mm?