The semilunar valves prevent blood from moving:a
from the atria back into the veins.
b. from the ventricles back into the atria.
c. from the arteries back into the ventricles.
d. moving backwards in the capillaries.
e. moving backward in the arteries.
c
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An atmosphere of pressure at sea level,, in psi (pounds per square inch), equals:
a. 15. b. 14.7. c. 15.7 d. 16.5. e. 16.7
Four of the five choices listed below are
characteristics of mutations. Select the exception. a. predictable b. harmful or beneficial c. random d. effects depend upon environment e. heritable
Plants are thought to have evolved from a group of algae known as:
a. red algae. b. cyanobacteria. c. charophytes. d. dinoflagellates. e. diatoms.
Look at the label above. What is the name of your primary health care provider?
What will be an ideal response?