Experience the caring, sharing culture of Mary Kay through a network of independent sales force members who can help you succeed in your business. Boost your confidence with a 100 percent satisfaction guarantee for customers and a 90 percent repurchase policy for independent sales force members.
Extinction is observed in both operantly conditioned and classically conditioned behavior. When operant behavior that has been previously reinforced no longer produces reinforcing consequences the behavior gradually stops occurring.
Death is the permanent termination of all biological functions which sustain an organism, and as such, is the end of its life. Extinction is the process by which an entire group or taxon, normally a species, dies out. Fossils are the preserved remains or traces of organisms.