2 SEM ACC W/RAVEN CARDED
2 SEM ACC W/RAVEN CARDED
12th Edition
ISBN: 9781264439218
Author: Raven
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 54, Problem 1DA
Summary Introduction

To determine: The information from the slope of the line about the behavior of the lizard.

Introduction: The horned lizards have flattened body and spikes on head and body which is distinguishable from their ancestors. These spikes help them to defend against predators. The evolution of horned lizard can be explained by Darwin’s theory of natural selection.

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Explanation of Solution

The tropical lizard has a behavioral system that helps it to manage a fairly uniform temperature of the body. The lizard basks in the open sun where there are patches of sunlight and then goes back to shade when the body becomes too hot. In shaded areas where there is low availability of sun the lizards adapt and becomes conformer, and subsequently adjust their body temperature to that of the surrounding.

The slope of the lizards in shaded areas indicate the constant increase in body temperature with respect to the surrounding whereas the slope of the tropical lizard in open habitat shows a uniform range of temperature maintained by the organisms irrespective of the change in air temperature.

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Chapter 54 Solutions

2 SEM ACC W/RAVEN CARDED

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