Commensalism :)
in case when bacteria and human, both are benifited.
Im sory i cant help
none of the answers r there
Answer:
The introns of protein-encoding nuclear genes of higher eukaryotes almost invariably begin (5') with GT and end (3') with AG. In addition, the 3'subterminal A in the “TACTAAC box” is completely conserved; this A is involved in bond formation during intron excision.
The answer is: b) solutes move out of the cell