Respiratory Distress Syndrome. Respiratory distress syndrome of the newborn, also called hyaline membrane disease, is the most common cause of respiratory distress in premature infants, correlating with structural and functional lung immaturity. The pathophysiology is complex.
Orange juice with pulp is a heterogeneous mixture. The pulp is not uniformly distributed throughout the juice, often settling at the bottom of the jug, resulting in regions with distinctly different properties.
In a heterogenous mixture, it is possible to see the various components. You can tell it is made up of more than one substance. An example is sand at the bottom of a beaker of water. A homogeneous mixture looks like it is just one substance. You cannot notice that is made up of different substances. An example is milk or Gatorade