The blank space in the task content should be filled with endospores.
As an alternative reproduction form, during endospore formation, the bacterium divides within its cell wall, in which case, one part engulfs the other. Endospores are resistant to harsh growth conditions and are able to survuve these conditions and lie dormant for extended periods, even centuries.
Read more on endospores;
https://brainly.com/question/14352007
#SPJ12