During the nineteenth century, sea otters were hunted almost…

During the nineteenth century, sea otters were hunted almost to extinction. When the number of sea otters became very low, the ecosystem of kelp bed “forests” was also disappearing. The sea otters were predators of sea urchins, which were, in turn, predators of the kelp. When sea otters declined, the sea urchin populations grew, destroying the kelp ecosystem and the many species that depended on it. What role did sea otters perform in this ecosystem?

The medical model of mental disorders has been criticized in…

The medical model of mental disorders has been criticized in that it created a set of powerful labels that have increased negative stereotypes of mentally disordered persons, and in turn, promoted fear of and prejudice against persons suffering from mental disorders.