Obstacles to microorganisms entering the body include ______ membranes.
A) mucous
B) cilia
C) antibody
D) toxin
Correct Answer:
Verified
Q4: T cells and B cells are the
Q12: A type of white blood cell that
Q13: Macrophages act as _ of worn-out cells.
A)scavengers
B)healers
C)vectors
D)suppressors
Q14: One of the best ways to break
Q15: The body's first line of defense against
Q18: Which of the following is not a
Q19: An organism that causes disease is a(n)
A)antigen.
B)toxin.
C)pathogen.
D)antibody.
Q20: White blood cells that directly destroy virus-infected
Q21: The phase of the immune response in
Q22: Lymphocytes that can get rid of cells
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents