In Testing a Hypothesis That "Territorial Defense in European Robins

question 4

Multiple Choice

In testing a hypothesis that "territorial defense in European robins is a fixed action pattern that is released by the sight of orange feathers," researchers found that robins defended their territory by attacking anything that was of similar size and had an orange patch.How would you show that it was indeed color that initiated the defense responses?

• A)Repeat the experiment using live specimens.
• B)Repeat the experiment using other shapes.
• C)Repeat the experiment removing the orange patch.
• D)Repeat the experiment with giant specimens.

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Definitions:

Spectral Data

Information derived from the analysis of a spectrum, used to identify the composition, physical properties, and structure of molecules.

Fragmentations

The breaking of chemical bonds within molecules to produce smaller, often radical or ionic, fragments, typically occurring in mass spectrometric analysis or chemical reactions.

MS

Mass spectrometry, an analytical technique used for measuring the mass-to-charge ratio of ions to identify and quantify molecules in a sample.

NMR

Nuclear Magnetic Resonance, a spectroscopic technique that exploits the magnetic properties of certain atomic nuclei to provide information about the structure, dynamics, reaction state, and chemical environment of molecules.