Write a hypothesis for why the dolphins stay near the surface after being fed

Im is in a crowd of people at the mall looking for his girlfriend tammy, who was supposed to meet him for dinner. jim realizes tammy is across the room as he catches a whiff of her overpowering perfume, 'paris #6'. which process explains why jim is able to smell the perfume?

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

Everything in the universe originated from a single point. how was it possible for everything in the universe to have occupied a single point in space?