Bone Fractures Are a Risk Factor in Chronic Renal Failure

question 3

Multiple Choice

Bone fractures are a risk factor in chronic renal failure because:

• A) calcium is lost in the urine.
• B) osteoblast activity is excessive.
• C) the kidneys fail to activate vitamin D.
• D) autoantibodies to calcium molecules develop.

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Definitions:

Jawed Fishes

Vertebrates possessing a jawbone, including most modern fish species, enabling varied diets and ecological niches.

Cretaceous Era

A geological epoch that lasted from about 145 to 66 million years ago, at the end of the Mesozoic Era, known for the extinction of dinosaurs.

Meteor Impact

The collision of a meteoroid with the Earth or another planet, causing effects ranging from craters to climate changes depending on the size and speed of the meteoroid.

Extinction

The process through which a species ceases to exist due to the death of its last remaining members.