Cocaine induces a sense of exhilaration by increasing the availability of dopamine and serotonin in synapses. Cocaine is among the powerful stimulants which increase the release of neurotransmitters such as nor-epinephrine, dopamine and serotonin, that affect CNS and PNS activity. Cocaine administration constricts blood vessels that are absorbing it, son snorting it is a slow way to deliver it to blood stream and eventually the brain.
Bones provide both structure and protection for the body is absolutely true. Bones or your skeleton protects all the organs in your body.
The answer choices to this question are:
<span>a.
</span>Learned
helplessness.
<span>b.
</span>Stimulus
discrimination.
<span>c.
</span>Aversive
conditioning.
<span>d.
</span>Vicarious
learning.
The best answer choice is:
<span>a. </span>Learned
helplessness
<span>Explanation: Learned helplessness was studied by
Seligman as a potential animal model of depression. Learned
helplessness occurs when people or animals feel helpless to
avoid negative situations. Martin Seligman first observed learned
helplessness when he was doing experiments on dogs. He noticed that the dogs
didn't try to escape the shocks if they had been conditioned to believe that
they couldn't escape.</span>
Global warming causes danger to human health and well-being, as well as to animals and plants. As global warming is mainly caused by anthropogenic activities, it was considered that emission of the so-called greenhouse gases should be reduced and in some cases even prohibited. Plants are more easily exposed to biological damage than any other living organisms.
All rocks, even metamorphic, can go through heat and pressure and become another kind of rock.
