EBK BIOLOGY: CONCEPTS AND APPLICATIONS
EBK BIOLOGY: CONCEPTS AND APPLICATIONS
9th Edition
ISBN: 8220100477805
Author: STARR
Publisher: CENGAGE L
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Chapter 17, Problem 2SQ
Summary Introduction

Introduction:

Evolution is the change in the phenotypic or genotypic characters of the species as a whole with passing generations; this can take place due to several internal and external factors.

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1. ____ occurs when allele frequencies change over generation due to random chance. a. extinction b. gene flow c. natural selection d. mutation
Evolution______ . a. is change in a line of descent b. is the same as natural selection c. is the goal of natural selection d. explains the origin of life
Match the evolution concepts. ___ gene flow            a. outcome can be interdependence ___ sexual                  b. changes in a population’s allele        selection             frequencies due to chance alone ___ extinct                 c. alleles enter or leave a population ___ genetic               d. adaptive traits make their       drift                      bearers better at securing mates ___ coevolution        e. no more living members ___ adaptive             f. burst of divergences from one      radiation              lineage into many
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