Bacteria vs. Protozoa

Bacterianoun

(US) A type, species, or strain of bacterium.

Bacterianoun

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Bacterianoun

A derisive term for a lowlife or a slob (could be treated as plural or singular).

Bacterianoun

An oval bacterium, as distinguished from a spherical coccus or rod-shaped bacillus.

Bacteria

See Bacterium.

Bacterianoun

(microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered plants

Bacteria

Bacteria ( (listen); common noun bacteria, singular bacterium) are a type of biological cell. They constitute a large domain of prokaryotic microorganisms.

Protozoa

The lowest of the grand divisions of the animal kingdom.

Protozoanoun

in some classifications considered a superphylum or a subkingdom; comprises flagellates; ciliates; sporozoans; amoebas; foraminifers

Protozoa

Protozoa (also protozoan, plural protozoans) is an informal term for a group of single-celled eukaryotes, either free-living or parasitic, that feed on organic matter such as other microorganisms or organic tissues and debris. Historically, protozoans were regarded as , because they often possess animal-like behaviours, such as motility and predation, and lack a cell wall, as found in plants and many algae.