Answer :

Final answer:

Prokaryotes are unicellular organisms without a nucleus. Cell size varies depending on function.


Explanation:

Prokaryotes are unicellular organisms that lack a nucleus. One example of a prokaryote is cyanobacteria, also known as blue-green algae. In contrast, brown algae and protozoa are not prokaryotes.

The size of a cell is related to its function and can vary greatly depending on the organism. For example, a muscle cell is larger than a bacterial cell due to differences in their functions and structures.


Learn more about Prokaryotes and cell size here:

https://brainly.com/question/38382420