21. The Immune System
Physical Barriers in First-Line Defenses: Mucous Membrane
Problem 20.7a
Textbook Question
Textbook QuestionMark the following statements as true or false. If a statement is false, correct it to make a true statement.
a. Surface barriers contain substances in their secretions that kill pathogens and deter their growth.
Verified SolutionThis video solution was recommended by our tutors as helpful for the problem above
Video duration:
0m:0s114
views
Was this helpful?
Related Videos
Related Practice
4:16
Showing 1 of 9 videos