Answer:
https://www.ncbi.nlm.nih.gov/books/NBK279457/
Explanation:
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Answer:
The dependent variable - the cholesterol level
Independent variables are the exercise and the drug.
Explanation:
A variable is a factor that can be modified or change. It is the factor that can be measured, altered, controlled in research or the experiment. It can be dependent or independent of their effect.
The independent variable is the factor of the experiment that controlled or manipulated by the researcher and it is considered to have a direct effect on the dependent variable whereas the dependent variable is being checked or tested.
So, in this experiment, the variable that is being tested is the cholesterol level that means it is a dependent variable. The independent variable here is exercise and drug as they manipulate and have an effect on the direct variable.
Thus, the correct answer is -
The dependent variable -the cholesterol level and
independent variables - exercise and the drug.
Answer:
Reticular activating system
Explanation:
The reticular formation refers to the network of neurons formed through the neurons of the brainstem and medulla.
The reticular system is not an anatomical structure but is present in the brainstem of the brain. The reticular formation on the upper side form the reticular activating system and on the lower side has the nerve fibres of the spinal cord.
The reticular system controls the consciousness ad arousals like mood and sleep.
In the given question, the sleep of the professor, therefore, could be due to the slow firing in the reticular formation.
Thus, Reticular activating system is the correct answer.
Reticular formation- brain stem structure associated with sleep, arousal, attention
