Campbell Biology (11th Edition)
Campbell Biology (11th Edition)
11th Edition
ISBN: 9780134093413
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 23, Problem 1TYU

Natural selection changes allele frequencies because some _______________ survive and reproduce better than others.

(A) alleles

(B) loci

(C) species

(D) individuals

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Evolution is most accurately described as a change in allele frequencies in over time. (a) an individual (b) a species (c) a population (d) a community
Alternatively, selection may be performed during mating, where mating is done after a selection process of one of the sexes. The surviving individuals can pass on their (1) to the next generation. When these variations are sustained over a long time and the population changes so that it can no longer (2) with the parent population, a new species is said to have evolved.
Applied Natural Selection: You are studying a population of a newly-discovered species of mammal called grendels.  They live here in the woods of CT, and the population has a wide range of thicknesses to their fur coats.  Most have a moderately thick coat year-round, including “Bob” and “Dave” and “Smurfette” and “Cindy,” four individuals that you are tracking.  But a few such as “Stan” have noticeably thinner coats, and there is even one that you call “Biff” that looks almost naked and has very little body hair at all (a metrosexual grendel, if you will). On the other hand, there are also a few with thicker-than-average coats such as “Penny” and “Silvia,” and one that you have nicknamed “Cousin It” because you can’t even see his eyes through all his lustrous hair.      (a) Using what you know about the different types of Selection, describe what you might expect of this population in terms of fur thickness over the next 1000 years if the climate stays the same as it has been up until…
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