Answer:
The correct option is: <em>a deficiency of dopamine in the substantia nigra.</em>
Explanation:
The substantia nigra is the principal site involved in the physiopathology of Parkinson´s disease.
Cells from this area degenerate and die progressively causing important degeneration in the central nervous system. The cells that die -with no known reason- are those that produce dopamine and proportionate dopaminergic innervation to the encephalon. In fact, almost all the symptoms exhibited by patients with the disease can be explained by the lack of dopamine in the substantia nigra.
This area uses the neurotransmitter to communicate neurons from the base ganglia. Ganglia are responsible of modulating and modifying movements.
The nigrostriatal system participates in planning and automatic execution of learned movements. When the ganglia activity decreases, so it does the amount and velocity of movements, something typical of the disease.
Macromolecules, hope this helps.
Unintentional learning occurs when behavior is modified through a consumer-stimulus interaction without any effortful allocation of cognitive processing capacity toward that stimulus
This suggests that user behaviour may vary based on how sensitive they are to information that was not available to them when they conducted the previous study.
This occurs as the behaviour is altered in response to the stimulus via a consumption-stimulus relationship without the arduous allocation of cognitive capacity.
<h3>What is Unintentional learning ?</h3><h3 />
Learning that happens accidentally as a result of activities when the learner has no deliberate objective of learning is known as incidental learning. Incidental learning occurs, for instance, when someone plays a sport for enjoyment yet gradually develops their skills.
Learn more about Unintentional learning here:
brainly.com/question/6770732
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I would choose the option D.
D. It remains tightly coiled at the G1 phase.
I believe the statement would be that, A magnetic field created by the electric current causes the compass needle to move.
An electric current through a conductor creates a magnetic field,such that when a charged particle such as an electron, proton, or ion is in motion, magnetic lines of force rotate around the particle. Since current moving through the wire consists of electrons in motion, there is a magnetic field around the wire, which causes the compass needle to deflect.
