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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332

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BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem
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Most bats eat insects or fruit. Vampire bats, however, suck blood from birds or mammals. Like some snakes, and unlike any other mammals, vampire bats have thermoreceptors that can detect body heat given off by prey. Is the heat-detecting ability of vampire bats and snakes a homologous trait or an analogous one? Explain your reasoning.

Summary Introduction

To determine: Whether the heat-detecting ability of vampire bats and snakes is a homologous trait or an analogous trait.

Introduction: Evolution has the basis that living beings share a common ancestry, and some similar traits evolved through other ways. Homologous traits share a common ancestry and are common in different organisms. Analogous traits are structurally different but possess a similar function in different organisms. They evolved independently and do not have a common ancestor.

Explanation

Unlike other bats, vampire bats do not eat insects or fruit. They are predators and suck blood from birds or mammals. Predatory animals such as snakes have thermo-receptors that help them to locate the warm bodies of the preys. Vampire bats also use thermo-receptors on nose to locate their prey by detecting their body heat. They are the only mammals that are capable of detecting thermal changes like snakes...

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