Prokaryotic microorganisms include which group?

Introduction / Context:
A key foundational classification in microbiology distinguishes prokaryotes from eukaryotes. Correctly identifying which groups are prokaryotic is essential for understanding cell structure, genetics, and antimicrobial targets.

Given Data / Assumptions:

• Choices include protozoa, fungi, and bacteria.
• We identify which listed group consists of prokaryotes.

Concept / Approach:
Prokaryotes lack a true nucleus and membrane-bound organelles. Bacteria (and archaea) are prokaryotic. Protozoa and fungi are eukaryotic, having nuclei and organelles.

Step-by-Step Solution:

Verification / Alternative check:
Introductory texts consistently define bacteria as prokaryotes; protozoa and fungi belong to Eukarya domain.

Why Other Options Are Wrong:

• A: Protozoa are eukaryotic unicellular organisms.
• B: Fungi are eukaryotes (yeasts, molds, mushrooms).
• D: Not all of the listed groups are prokaryotic.

Common Pitfalls:
Mixing up “microorganism” with “prokaryote.” Many microorganisms (protozoa, some algae, fungi) are eukaryotic.

Final Answer:
bacteria