Public Domain Image. Diffusion is the tendency of molecules to spread into an available space. Without other outside forces at work, substances will diffuse from a more concentrated environment to a less concentrated environment.Passive transport is the diffusion of substances across a membrane.This is a spontaneous process and cellular energy is not expended. Molecules will move from where the substance is more concentrated to where it is less concentrated.ithout other outside forces at work, substances will diffuse from a more concentrated environment to a less concentrated environment. Passive transport is the diffusion of substances across a membrane. This is a spontaneous process and cellular energy is not expended.
Tweet. Today, people around the country will celebrate Juneteenth, the anniversary of the day (June 19, 1865) slaves in Texas learned that slavery had been outlawed. The news came two and a half years after President Abraham Lincoln had issued the Emancipation Proclamation.
In the 1970's Juneteenth revived in some communities. For example, in Austin the Juneteenth celebration returned in 1976 after a 25 year hiatus. House Bill no.1016 passed in the 66th Legislature, Regular Session, declared June 19, Emancipation Day in Texas, a legal state holiday effective January 1, 1980.Since that time, the celebration of Juneteenth continues across the state of Texas with parades, picnics and dancing.or example, in Austin the Juneteenth celebration returned in 1976 after a 25 year hiatus. House Bill no.1016 passed in the 66th Legislature, Regular Session, declared June 19, Emancipation Day in Texas, a legal state holiday effective January 1, 1980.