Answer:
In this scenario, the green light is a(n) <u><em>signal</em></u>.
Explanation:
In the above scenario, with time, the pigeon has learnt that he will be rewarded only when the green light is on. Such a condition is known as learned behaviour. In the future, the pigeon will only peck the button when the green light is on because he will know that he will be rewarded for pecking the button only when the green light is on. Hence, the green light is the signal for the pigeon to start pecking the button.
C<span>arcinoma
based on dictonary.com
oma
</span><span>a noun suffix used to form names of tumors, of the kind specified bythe base</span>
Upon the positive Kernig and Brudzinski sign, the nurse should interpret meningeal irritation.
Kernig sign indicates the stiffness of hamstrings with pain on knee extension. And Brudzinski sign is indicated when passive forward flexion of the neck causes the patient to involuntarily raise his knees or hips in flexion.
Meningeal irritation is caused due to the infectious meningitis. Meninges are the three layers of tissues protecting the brain and spinal cord. The symptoms include headache, stiffness of neck and fever. nausea and vomiting can also happen. It can be diagnosed by lumbar test and neuroimaging.
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C. Skin
Because it's the outer layer of your body that protects everything
