Question

In what ways are members of the monera similar to members of the protoctista?

Answer 1

both members of monera and protoctista(protista) are unicellular....

Answer 2

Answer:

The similarity between the class monera and Protoctista is that both of them are single celled organisms.  

Explanation:  

The monera are a group of unicellular organisms that are termed as prokaryotes whereas the Protoctista are unicellular eukaryotes.

Though they are unicellular they are termed under 2 different banners because the organisms belonging to the Protista, contain a well-defined nucleus and cell organelles whereas organisms belonging to Protista do not have a well-defined nucleus and membrane bound organelles.