To Make Inferences About the Vision of the Ancestor of Birds

question 89

Short Answer

To make inferences about the vision of the ancestor of birds, dinosaurs, and crocodiles, biologists have used phylogenetic methods to reconstruct a pigment called _______, which was involved in the ancestor's vision.

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Definitions:

Weber Test

A quick screening test for hearing that involves placing a tuning fork in the middle of the forehead to assess hearing loss or differences in hearing between ears.

Romberg Test

A neurological test used to assess balance and the sense of proprioception, where the patient stands with feet together and eyes closed.

Rinne Test

A hearing test using a tuning fork to assess the difference in sound perception between air conduction and bone conduction.

Pure Tone Audiometry

A hearing test that uses tones of various frequencies and intensities to determine a person's hearing thresholds.