Osmosis is the short answer
what is happening is that the salad dressing has a lot of salts and little water and the lettuce leaves have all the water so when the letters has salad dressing on it the water is drawn out of the lettuce leaves and ended up in the bottom of the bowl
The answer is mitochondria
Its the one with influenza that traveled to many different coultries
C an experiment in which results are repeatd
Gene splicing is used to produce Human insulin