State whether the following statement is True or False:
Oxygen is necessary for life for most organisms in the process of respiration,but some forms of life,especially bacteria,are poisoned by elemental oxygen.

(TRUE) The statement is True.
While oxygen is essential for aerobic respiration in most living organisms,there are specific groups of microorganisms known as obligate anaerobes (such as certain bacteria like $Clostridium$ species) for which elemental oxygen is toxic and can be lethal.