Biology: The Unity and Diversity of Life (MindTap Course List)
Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 44, Problem 10SQ
Summary Introduction

Concept introduction: Population genetics describes the natural selection by defining the species adaptations to their environment. Natural selection is a process in which the organisms adapt to the environment by means of reproduction that selectively have changes in its genotypes. This influences the number of offspring and its life histories.

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Some females seem to prefer the green colouration and some females seem to prefer the blue colouration. What type of selection is this an example of? a. stabilizing  b. balancing  c. directional  d. diversifying
The Grants have studied finches on the Galapagos Islabds for 40+ years. During times of drought there is less green/flowering vegetation available as a good source for the finches. This leaves only the hard seeds. The grants have found that during drought, finches with larger beaks survive at a higher rate because they can access food source. This would be an example of ____ A.Selective pressure  B. good genes hypothesis  C. handicap principle  D. population variation
A. Stabilizing Selection B. Disruptive Selection C. Directional Selection D. Normal Selection 26. A biologist studying wolves has collected data on the mass of meat caught per day from hunts by packs varying in size from 2 to 15 wolves. The data show that as pack size increases, the mass of meat available per pack member per day increases. Which additional study would provide evidence that pack hunting provides an advantage? A. Measure and compare the abili ty of wolves of varying ages to successfully engage in hunting. B. Observe whether an individual wolf hunts different types of prey than a pack of wolves hunts. C. Measure the ratio of male to female wolves engaging in hunting to see if it varies with pack size. D. Compare the average number of pups per litter that reach reproductive age for wolf packs of different sizes. luminate Education TM Inc.
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GCSE Biology - Adaptations #79; Author: Cognito;https://www.youtube.com/watch?v=tC-u8xcZYSM;License: Standard Youtube License