Cuts can often get infected with bacteria because many sharp objects already have bacteria on their surface.
Correct Answer:
Verified
Q30: Specific defenses can respond more quickly to
Q31: Antibodies are part of the normal outer
Q32: The epithelium is a tissue that is
Q33: Keratin helps to waterproof the skin.
Q34: Cilia in the air passages clean dust
Q36: Phagocytes store histamine inside their cells.
Q37: Macrophages are usually the first white blood
Q38: Antibodies from a person previously exposed to
Q39: Passively acquired immunity from a gamma globulin
Q40: You must be directly exposed to a
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