The correct answer is C: In helper T Cells :)
Answer:
Behavior learning
Explanation:
Learning is the process of acquiring new knowledge or modifying existing ones. In psychology, there are different learning theories. Cognitive, behavioral among others.
Behavior learning is the theory that focuses on learning based on past experiences and connections formed. The behavior are therefore conditioned through interactions with the enviroment.
The response to the environmental stimuli will shape the action hence learning occurs.
Blocked, and the heart can't get oxygen.
Answer: his pain when using the restroom
Explanation: His grades and difficulty obtaining a job are irrelevant. His aching tooth should be discussed with his dentist.
Hope this helps! :)
Tilbury Fox described infectious impetigo in children and newborns in 1864. He drew specific emphasis to the vesicular type, which is currently common in maternity units. Almquist demonstrated in 1891 that the infecting organism was a staphylococcus. Matzenauer established the relationship between pemphigus neonatorum and impetigo contagiosa in 1900 by identifying the activating microorganism. Animal inoculation was often unsuccessful, but in 1911, Landsteiner and his colleagues generated pemphigoid lesions in chimps. With these several discoveries, the understanding of impetigo remained roughly the same until 1917. Surprisingly, throughout the fifty-three years following Fox's discovery, the disease received no special attention in any significant pandemic. However, as a questionnaire confirmed, this hitherto rare and sporadic illness abruptly altered its character and erupted in more or less violent outbreaks in 1917. Few maternity cases were excluded, and several physicians who had never seen impetigo as a nursery concern were overwhelmed by the influx of cases. Nurseries were handled like hospitals for infectious illnesses everywhere, but only to a limited extent. Many were completely closed, and others should have been.