A certain kind of bacteria lives and feeds in the intestines of mammals. The bacteria partially digest complex molecules, making them easier for the animal to digest. Which term described the relationship between the intestinal bacteria and the mammals? A) mutualism
B) commensalism
C) parasitism
D) competition

passing a magnet thought the

mixture , because iron gets attracted to magnet .

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.