kat1010 Here is your answer! Question: The rapid pH change from the stomach to the small intestine is an example of a (an) Select one: A. chemical barrier. B. phagocytic barrier. OC. physical barrier. OD. physiological barrier. E. internal barrier. (4) Which of the following shows the correct sequence of events that occur in T cell development? 1. Expression of T cell receptors II. Generation of double negative T cells III. Answer: https://controlc.com/0c2b7ba0
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