Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Q: The term amines is used to describe molecules that contain carbon-nitrogen bonds.

A: What term is used to describe molecules that contain carbon-nitrogen bonds?
****
Q: Phospholipids are vesicles made of.

A: What are vesicles made of?
****
Q: Positive feedback intensifies a change in the body’s physiological condition rather than reversing it.

A:
What type of feedback intensifies a change in the body’s physiological condition rather than reversing it?
****