The risk of serious illness from measles is 500 times greater than from vaccination against the disease
Indicate whether this statement is true or false.
TRUE
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All of the following are true about salmon smolt EXCEPT:
a. They have a larger surface-to-volume ratio compared to adults. b. They develop adaptations for living in salt water. c. This is the period when they reach sexual maturity. d. They are migrating to the ocean
Which of the following adaptations would NOT increase the surface area of a respiratory surface?
a. skin folds on an amphibian b. a flatworm having a broad, flat body c. branched gill filaments d. internal folds within lungs e. endothermy
Which of the following does NOT happen when the
body has excess sodium? a. More sodium is excreted. b. More sodium is reabsorbed. c. Edema occurs. d. Blood pressure rises. e. Aldosterone secretion is inhibited.
The ______ of an outcome is calculated without any restrictions, such as by age or sex
a. Adjusted rates b. Cumulative incidence rate c. crude rate d. proportion