The polio viruses usually enter the body through

A. the oral route.
B. contaminated blood.
C. cuts in the skin.
D. the respiratory route.


A.

Biology & Microbiology

You might also like to view...

In a resting neuron, which ion is leaking out of the cell?

a. potassium only b. sodium only c. chloride only d. calcium only e. both sodium and potassium

Biology & Microbiology

In order for fast-twitch muscle fibers to produce ATP, a phosphate from the high-energy molecule creatine phosphate is transferred to ________

Fill in the blank(s) with correct word

Biology & Microbiology

Peristalsis is ________.

a) the process by which the chest cavity is enlarged to allow inhalation b) the distinguishing characteristic between chordates and vertebrates c) a series of muscular contractions that moves food through the digestive tract d) an infection of the bronchioles, resulting in reduced air flow to the lungs.

Biology & Microbiology

A ________ ring is the characteristic feature present in BOTH cephalosporins and penicillins produced by fungi. Semisynthetic versions of these drugs typically ________ this ring structure with other functional groups

a. ?-lactam / add to b. ?-lactam / replace c. lactone / add to d. lactone / replace

Biology & Microbiology