DENDROLOGY

Detailed explanation-1: -Unicellular prokaryotic species only exist in Monera. Unicellular prokaryotic species, such as bacteria, are classified as “Monera” since they lack a nuclear membrane and are capable of both autotrophic (chemosynthetic and photosynthetic) and heterotrophic (saprophytic/parasitic) feeding.

Detailed explanation-2: -Unicellular organisms can be prokaryotes or eukaryotes. Prokaryotes do not have cell nuclei: their structures are simple. Bacteria and archaea are all unicellular prokaryotes. Eukaryotes do have cell nuclei and their structures are more complex.

Detailed explanation-3: -Microorganisms can be unicellular (single cell), multicellular (cell colony), or acellular (lacking cells). They include bacteria, archaea, fungi, protozoa, algae, and viruses. Bacteria are single celled microbes that lack a nucleus.

Detailed explanation-4: -Bacteria are classified as prokaryotes because they lack a nucleus and membrane-bound organelles. All bacteria are prokaryotes, and while they may have other cellular structures such as a cell wall, cilia, or flagella, they lack a nucleus, making them prokaryotic.

Detailed explanation-5: -While prokaryotes are always unicellular organisms, eukaryotes can be either unicellular or multicellular.