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 22, Problem 1TYU

Level 1: Knowledge/Comprehension

1. Which of the following is not an Observation or inference on which natural selection is based?

  1. (A) There is heritable Variation among individuals.
  2. (B) Poorly adaptcd individuals ncver producc offspring.
  3. (C) Species produce more offspring than the environment can support.

    Chapter 22, Problem 1TYU, Level 1: Knowledge/Comprehension 1. Which of the following is not an Observation or inference on

  4. (D) Only a fraction of an individual's offspring may survive.
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Define natural selection using the 5 points below to explain its role in understanding primate behavior. (1) there is variation among individuals;   (2) some of that variation is heritable;   (3) there is always competition between individuals for resources;  (4) some variants outcompete other variants and leave more offspring;   (5) to the extent that the parent's traits are heritable, then a larger portion of the next generation will  reflect those traits.
Which of the following is not true of natural selection?(a) natural selection acts to preserve favorable traits and eliminate unfavorable traits (b) the offspring of individuals that are better adapted to the environment will make up a larger proportion of the next generation (c) natural selection directs the course of evolution by preserving the traitsacquired during an individual’s lifetime (d) natural selection Test Your Understanding acts on a population’s genetic variability, which arisesthrough mutation (e) natural selection may result in changes in allele frequencies in a population
Natural selection allows certain species to survive. The organisms that survive are those best adapted to their environment. Does natural selection make organisms more complex and perfect?

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