How are bacteria and archaea different from protozoans, fungi, and helminths?

What are the differences between bacteria, archaea, protozoans, fungi, and helminths?

a) Protozoans are unicellular, while bacteria and archaea are multicellular.
b) Bacteria and archaea are prokaryotic, while protozoans, fungi, and helminths are eukaryotic.
c) Fungi and helminths are microscopic, while bacteria, archaea, and protozoans are macroscopic.
d) Bacteria, archaea, and fungi are pathogens, while protozoans and helminths are beneficial microorganisms.
Final answer: Bacteria and archaea are prokaryotic and unicellular, without a nucleus or membrane-bound organelles, whereas protozoans, fungi, and helminths are eukaryotic, with a nucleus and organelles. Protozoans are unicellular, while fungi and helminths can be either unicellular or multicellular. The correct answer is option b).

Answer:

Bacteria and archaea are different from protozoans, fungi, and helminths because bacteria and archaea are prokaryotic, while protozoans, fungi, and helminths are eukaryotic.

Bacteria and archaea are unicellular organisms that lack a cell nucleus and membrane-bound organelles. In contrast, protozoa, which are also unicellular, fungi, which can be either unicellular or multicellular, and helminths, which are multicellular, all possess a cell nucleus and organelles, characteristics of eukaryotic cells.

It is incorrect to state that protozoans are multicellular as they are actually unicellular. Neither is it correct to categorize all fungi and helminths as microscopic or all bacteria, archaea, and protozoans as macroscopic. Additionally, not all bacteria, archaea, and fungi are pathogens, nor are all protozoans and helminths beneficial; each group includes species with diverse roles in the environment and various impacts on human health.

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