Protista differs from Monera in having a Nuclear membrane:
Protista and Monera are two different groups of organisms classified under the kingdom Protista and Monera, respectively. One of the key differences between these two groups is the presence of a nuclear membrane.

Protista:
- Protista is a diverse group of eukaryotic organisms that have a well-defined nucleus enclosed within a nuclear membrane.
- They are unicellular, colonial, or multicellular organisms with complex cell structures.
- Protists can have various modes of nutrition including autotrophic, heterotrophic, or mixotrophic.

Monera:
- Monera, on the other hand, is a group of prokaryotic organisms that lack a true nucleus and other membrane-bound organelles.
- Monera includes bacteria and cyanobacteria which have a simple cell structure without a nuclear membrane.
- They have a single circular chromosome located in the nucleoid region of the cell.

Comparison:
- The presence of a nuclear membrane is a significant characteristic that distinguishes Protista from Monera.
- Protists have a more complex cellular organization with membrane-bound organelles including a nucleus, while Monera have a simpler cell structure without a nuclear membrane.
- This difference in cellular structure reflects the evolutionary divergence between eukaryotic protists and prokaryotic Monera.