?? ??? ??? Fermented foods such as sauerkraut or pickles are kept from spoiling by the effects of? pH ??? ??? ??? A(n) _____ organism is one that requires oxygen for growth. obligate aerobic ??? ??? ??? Human pathogens are classified as _____. mesophiles ??? ??? ??? Organisms that can grow with or without oxygen present are facultative anaerobes or aerotolerant anaerobes ??? ??? ??? The use of sal