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.
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
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
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.
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