What difference is the speaker trying to show in the two lines that start with but in I ask my mother to sing

Yes or no? biology is the study of rocks and minerals.

How dose religion today compared to the puritans idea of religion

How can behavioral science be applied in improving public health? a.by tracking a disease to determine its sourceb.by creating promotions that improve health habitscboth by tracking a disease to determine its source and by creating promotions that improve health habitsd.neither by tracking a disease to determine its source or by creating promotions that improve health habits