The reactions involving most chemical compounds in living systems depend upon the presence of
(A) sulfur as an enzyme
(B) water as a solvent
(C) salt as a substrate
(D) nitrogen as an energy carrier

HELP WHICH ONE?

Which group of protists would be most likely to have cilia as adults and why? (1 point)the sporozoan protists would since they have to spread their spores around.the heterotrophic protists would since they use them to gather food.the parasitic protists would since they need to find other organisms to attack.the autotrophic protists would since they must move to find light.