The second line of defense against disease agents are cells and chemicals in the:

A. Bloodstream
B. Nostrils
C. Antigens
D. Colostrum


Answer: A

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Fill in the blank(s) with correct word

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Indicate whether the statement is true or false

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A. truck line B. feed line C. Multi-conductor D. substation E. none of the above

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Answer the following statement true (T) or false (F)

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