Answer: The gateway drug effect (alternatively, stepping-stone theory, escalation hypothesis, or progression hypothesis) is a comprehensive catchphrase for the often observed effect that the use of a psychoactive substance is coupled to an increased probability of the use of further substances.
Explanation:
<span>During digestion the small intestine is responsible for extracting or absorbing nutrients. Two of the three segments of the small intestine are responsible for these processes - the jejunum and the ileum (which located between first segment of the small intestine (the duodenum) and the colon). The colon, or large intestine, is responsible for maintaining fluid balance. The colon absorbs water from waste products of digestion and these waste products eventually become solidified stool.</span>
