most bacteria are

A) unicellular eukaryotes
B) unicellular prokaryotes
C) multicellular eukaryotes
D) multicellular prokaryotes

http://biology.about.com/od/cellanatomy/ss/prokaryotes.htm

the answer is a

To determine the correct answer, we can analyze the question and break it down. The question asks about bacteria, so we need to consider their characteristics.

First, let's understand the difference between eukaryotes and prokaryotes. Eukaryotes are organisms that have cells with a true nucleus bound by a membrane, while prokaryotes are organisms that do not have a nucleus or any other membrane-bound organelles within their cells.

Based on this information, we can eliminate options A and C. Unicellular eukaryotes would refer to organisms like certain protozoa, not bacteria. Multicellular eukaryotes would refer to complex organisms like plants, animals, and fungi, not bacteria.

Now, let's consider the remaining options, B and D. Since bacteria are known as prokaryotes, option B, "unicellular prokaryotes," is the correct answer.

So, the correct answer is B) unicellular prokaryotes.