Bacteria that may form endospores include a. e. coli. b. pseudomonas and micrococcus. c. clostridium and bacillus. d. enterococcus and deinococcus.

C. Clostridium and Bacillus.

Explanation:

Bacillus and Clostridium are the gram-positive bacteria and form endospores. Endospores are the resistant dormant structures formed by some gram-positive bacteria.

These bacteria form the endospores within their vegetative cells. The endospores are highly resistant to environmental stress conditions and make these bacterial genera the dangerous pathogens.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs