All three bacterial species are gram negative. Gram negative bacteria tend to survive better in Internal cavities of the body as they do not have thick cell walls like gram positive bacteria, so tend to "dry out" in dryer conditions like on the skin.
<span>So I would say the urinary tract provides them with a "good" living environment to thrieve and cause infection. They are all opportunistic pathogens. They are also all found naturally in nature in soil and plant roots so maybe this has something to do with it? </span>
7 isnt an option? i guess go for 6 hope this helped :)
The answer is that they use food inspections to reduce food poisoning
The human body is mostly made up of water (H2O), and there is one oxygen atom in each molecule of water. Note that, although each water molecule also contains two hydrogen atoms, the atomic mass of hydrogen (about 1) is much smaller than the atomic mass of oxygen (about 16). Because of this, hydrogen contributes less to human body mass than oxygen.
