all different types of bacteria undergo spore formation
Yes
the thread like structures
Yes
they reproduce by spore formation.
because spore formation is also a group of organisms that help together to reproduce new species....
yes
asexually through spore formation
An abstriction is a method of spore formation in fungi in which successive portions of the spore are cut off through the growth of septa.
Formation of spore inside the bacterium is called endosporulation as in bacilli .
spore formation process is quite primitive
spore formation occurs in between meiosis and gamete formation.