Through which fastest medium would sound travel fastest? iron or water at 25 degree C ?

Patricia is told by her physician that her body and brain chemistry have physically adapted to the drug and that she has become dependent on the tranquilizers prescribed for her by another doctor.

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?

What organ is the first to receive nutrients that have been absorbed from the digestive tract?