Which of the following is the SI unit of electric current?
a. Ampere
b. Coulomb per kilogram
c. Erg
d. Sievert
a. Ampere
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In the formula for Henry's law, the c represents which of the following?
a. Mass c. Solubility b. Density d. Partial pressure
Pericardial fluid
A) circulates through the heart's chambers. B) lubricates the electrical system of the heart. C) prevents backflow of blood from one chamber to the other. D) decreases friction of the pericardial layers as they rub against each other.
Which of these is the amount of air that remains in the lungs at all times?
A. Expiratory reserve volume B. Functional residual capacity C. Vital capacity D. Total lung capacity E. Residual volume
Infectious diseasesare responsible for ____% of worldwide deaths in children under 15 years old and ____% of deaths in people aged 15-59 years old.
A. 90; 70 B. 98; 50 C. 50; 90 D. 20; 80