Reproduction is by nonmotile spores called autospores.
In addition, all land plants are strictly oogamous, having motile sperm and nonmotile eggs.
The typical green algal cell, which can be motile or nonmotile, has a central vacuole, pigments contained in plastids that vary in shape in different species, and a two-layered cellulose and pectin cell wall.
The prokaryotic flagellum is intrinsically nonmotile (rather, it is moved by its basal part, which is embedded in the cell membrane); it is entirely extracellular, and it is neither homologous with (i.e., does not have a common evolutionary origin) nor ancestral to the eukaryotic flagella.
Some green algae produce nonmotile spores called aplanospores, while others produce zoospores, which lack true cell walls and bear one or more flagella.
Each antheridium (male gametangium) forms many motile flagellate sperm, and each archegonium (female gametangium) forms one nonmotile egg.
Streptococci are microbiologically characterized as gram-positive and nonmotile.
Shigella are microbiologically characterized as gram-negative, non-spore-forming, nonmotile bacteria.
Its species are microbiologically characterized as gram-negative, nonmotile, facultative anaerobes (not requiring oxygen) that have a fermentative type of metabolism.
The black sporangia at the tips of the sporangiophores are rounded and produce numerous nonmotile multinucleate spores for asexual reproduction.
In centric diatoms there is marked differentiation between nonmotile female gametes, which act as egg cells, and motile (typically uniflagellate) male gametes.
