Schoeninger Interpreted the Greater Range of Nitrogen Isotope Ratios in the Stillwater

question 10

Multiple Choice

Schoeninger interpreted the greater range of nitrogen isotope ratios in the Stillwater burial population compared to the Pecos or Ontario populations as reflecting:

• A) greater dietary variability in the Pecos and Ontario populations than in the Stillwater population.
• B) greater dietary variability in the Stillwater population than in the Pecos and Ontario populations
• C) the fact that the Stillwater population had an increasing dependence on meat through time
• D) an individual's age or sex; in the Stillwater population, children ate less meat than adults and males ate more meat than females.

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Definitions:

Plasma Membrane

Cell membrane that encloses the cytoplasm; separates a cell from its external environment.

Cilia

Singular cilium. Short, hairlike structures that project from the plasma membrane of some eukaryotic cells. Motile types often occur in clumps that beat in unison.

Flagella

Long, whip-like structures that protrude from the cell body of certain organisms, used for movement.

Selectively Permeable

A characteristic of cell membranes that allows certain molecules or ions to pass through it by means of active or passive transport, while blocking others.