Trained athletes tend to have ________ heart rates and ________ stroke volumes than nonathletes at rest
A) higher; higher
B) lower; lower
C) higher; lower
D) lower; higher
E) similar; higher
D
You might also like to view...
Depolarization of the motor end plate results from more ____________________ ions entering the cell than ____________________ ions leaving the cell
Fill in the blank(s) with correct word
hyperthyroidism occurs when the thyroid gland secretes decreased amounts of thyroxine
a. true b. false
The incidence of stroke more than doubles in each successive decade for people older than ________ years old.
Fill in the blank(s) with the appropriate word(s).
In humoral immunity, B cells clone themselves in the germinal centers of the lymphatic nodules to become what two types of cells?
A. Natural killer cells and memory cells B. Natural killer cells and helper cells C. Helper cells and plasma cells D. Plasma cells and memory cells