This is a very hard question I have NEVER encountered a question like this before so I will have a shot...The meaning of life...the condition that distinguishes animals and plants from inorganic matter, including the capacity for growth, reproduction, functional activity, and continual change preceding death. Why am I so scared of death...Well if you are young(Comment how old you are) you do not have to worry because you have years before you can start worrying when you are old...I actually have no clue! I am just 10 years old so I do not really know!! HEH HEH.
And the answer to life is 42.
Answer:
b. The rats press the lever least when cocaine is presented.
Explanation:
Reinforcement or reward refers to the physiological processes by which a given behavior, such as drug use, becomes habitual. This occurs when neurons release the neurotransmitter dopamine to the nucleus accumbens (NAc) after drug use.
In tobacco, nicotine is the main component triggering of the reinforcement. Once inside the brain, nicotine activates nicotinic receptors, which in turn contributes to the reinforcement mechanism. Following repeated exposure to nicotine, a neuroadaptation process is established for some (but not all) effects of nicotine. Increased brain nAChRs (acetylcoline receptors) are observed in response to desensitization of these nicotine-mediated receptors. This desensitization can play an important role in the development of tolerance and dependence.
The fact that nicotine is a weak reinforcer, means that maybe the rat already had an neuroadaptation with this drug, not feeling anything with this drug anymore, and thats why he would prefer other drug, like cocaine, pressing the lever of nicotine less often.
Answer:
Yes
Explanation:
Many other options for “healthy” diets are presented to us through books, articles and advertisements. The fast-paced American lifestyle lends itself to quick-fix diets that will give the best results in terms of weight loss and overall appearance. An entire industry exists to promote diets that are low-carb, gluten-free or aim to return us to our caveman roots. While some argue that these diets restrict certain food groups and decrease good nutrition overall, others point to cases where individuals have been able to regain control over their weight and their health by using these dietary plans.
Answer:
D
Explanation:
ot would be D because if he wants to stay safe then he would need to be on guard
