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Which of the following is not a part of the first line of defense against foreign invaders?

Select all of the following Innate – External defense barriers of the human body:

Which of the following is an avenue through which the human body can develop immunity artificially: 

A dendritic cell located in the skin is known as a: 

Which of the following lymphoid organs is responsible for the production of Hematopoietic Stem Cells (HSCs): 

I understand that ALL exams will be taken through “Honorlock” or taken on campus by scheduling a time during the testing window with the Instructor. In addition, I have reviewed the student resources for “Honorlock” and understand it.

True or False: We are able to differentiate between T and B cells morphologically under a microscope. 

A(n) _________ is a small, soluble protein secreted by immune cells and acts as a chemical messenger to regulate the immune system. 

True or False: Lymphocytes mature in the primary lymphoid organs. 

Classify the following as either primary or secondary lymphoid organs: