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Apply Evolutionary Thinking When a biologist first tested a new pesticide on a population of insects, she found that only 1% of the insects survived their exposure to the poison. She allowed the survivors to reproduce and discovered that 10% of the offspring survived exposure to the same concentration of pesticide. One generation later, 50% of the insects survived this experimental treatment. What is a likely explanation for the increasing survival rate of these insects over time?

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Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
Publisher: Cengage Learning
ISBN: 9781305389892
BuyFind

Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
Publisher: Cengage Learning
ISBN: 9781305389892

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Chapter
Section
Chapter 1, Problem 15TYK
Textbook Problem
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Apply Evolutionary Thinking When a biologist first tested a new pesticide on a population of insects, she found that only 1% of the insects survived their exposure to the poison. She allowed the survivors to reproduce and discovered that 10% of the offspring survived exposure to the same concentration of pesticide. One generation later, 50% of the insects survived this experimental treatment. What is a likely explanation for the increasing survival rate of these insects over time?

Expert Solution
Summary Introduction

To review:

The explanation for the increased survival rate of the insects over time.

Introduction:

Reproduction can be defined as the process through which the parents give rise to new generation. The new organisms are referred as offspring. The reproduction is one of the fundamental properties of life. There are two different types of reproduction, namely the asexual reproduction and sexual reproduction.

Explanation of Solution

In this case, a biologist tests a new pesticide on a population of insects and only 1% survived and in the next generation 10% of the offspring survived, and the percentage of the surviving offspring increased. This can be explained as the natural selection. The 1% of insects that survived to the poison had better ability to survive and reproduce. So, they survived and reproduced offspring...

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Chapter 1 Solutions

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