B. Viruses
We catch the common cold from a living thing called a virus. There is about 200 identified viruses you can catch but the most common is the rhinovirus, it causes 10% - 40% in spring, summer, and fall.
The answer to the question above is 2. The girl should receive 2 doses of influenza vaccine this flu season. Basically, influenza is contagious. This virus can spread from person-to-person. Children at this age is highly susceptible to this kind of serious illness because their immune system is not fully competent enough compared to adults. Even adults can acquire this illness if they are immunocompromised. This is the reason why children need 2 doses.
Answer:
voluntary behavior
Explanation:
Classical conditioning involves associating an involuntary response and a stimulus, while operant conditioning is about associating a voluntary behavior and a consequence. In operant conditioning, the learner is also rewarded with incentives,5 while classical conditioning involves no such enticements.
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