Chapter 30, Problem 2CT

Summary Introduction

To determine:

The adaptive advantage in the retina structure of prey birds that have photoreceptors in a region closer to the eyeball’s roof.

Introduction:

Sensory information arrives at the brain in the form of action potentials. The brain uses three variables to determine the location and intensity of a stimulus. The first variable is the nerve, the second variable is the frequency, and a third variable is a number of sensory receptors.