What is needed for changes to occur?\nOptions:\n- (A) exercise\n- (B) mutations\n- (C) growth\n- (D) healthy animals\n- (E) environment\n- (F) evaporation\n- (G) Exfoliation\n- (H) births
Hmmm, let me think. I don't want to be wrong, so I got to be careful.
User
Mutations are essential for evolution to occur. Evolution Change through time. Mutations are essential for changes to occur. The answer: (B).
Assistant