Shift Workers (E

question 70

Multiple Choice

Shift workers (e.g. ,working 7 p.m.to 3 a.m. ) tend to develop:

• A) insomnia.
• B) hypersomnia.
• C) metabolic syndrome.
• D) anxiety problems.

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Definitions:

Radioisotope

Isotope with an unstable nucleus.

Radiometric Dating

A technique used to date materials such as rocks or carbon, by measuring the decay rate of radioactive isotopes contained within those materials.

K-Pg Boundary

A geological signature marking the transition between the Cretaceous (K) and Paleogene (Pg) periods, approximately 66 million years ago, associated with the mass extinction event that included the demise of the dinosaurs.

Cretaceous Period

A geological period from about 145 to 66 million years ago, known for being the last portion of the age of dinosaurs.