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book Biology 1st Edition by Jerome Krueger, Kendra Hill, Robert Noyd cover

Biology 1st Edition by Jerome Krueger, Kendra Hill, Robert Noyd

النسخة 1الرقم المعياري الدولي: 978-1305747852
book Biology 1st Edition by Jerome Krueger, Kendra Hill, Robert Noyd cover

Biology 1st Edition by Jerome Krueger, Kendra Hill, Robert Noyd

النسخة 1الرقم المعياري الدولي: 978-1305747852
تمرين 19
There is a difference between being infected with a pathogen and having a disease. Select the statements below that are correct.
A) A carrier without any symptoms is infected but not diseased.
B) A carrier without any symptoms is infected and diseased.
C) A person with symptoms is infected and diseased.
D) A person with symptoms is not infected but has the disease.
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Biology 1st Edition by Jerome Krueger, Kendra Hill, Robert Noyd
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