Oxygen Isotope Analysis Is the Measurement of Two Isotopes of Oxygen

question 24

Multiple Choice

Oxygen isotope analysis is the measurement of two isotopes of oxygen (¹⁸O and ¹⁶O) . The lighter isotope, ¹⁶O, _________.

• A)is more prevalent in glaciers
• B)evaporates more readily from the oceans
• C)is more prevalent in precipitation
• D)all of the above

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Definitions:

Aspirate

To draw in or out using a suctioning action, often referring to the inhalation of food or liquid into the lungs, or the removal of substances from the body.

Gastric Contents

The material present in the stomach, including ingested food, stomach acid, enzymes, and sometimes ingested foreign objects.

pH Reading

The measure of acidity or alkalinity of a solution, ranging from 0 to 14, where 7 is neutral, below 7 is acidic, and above 7 is alkaline.

Nutritional Assessment

A comprehensive evaluation of an individual's dietary intake and nutrition status to identify nutritional needs and develop a plan.