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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332

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BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem
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Species that live in unpredictable habitats are more likely to show traits that are favored by ______.

  1. a. r-selection
  2. b. K-selection

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.

Explanation

Reasons for the correct statements:

The selection process is mainly to increase the frequency of population with useful adaptions to the generations. r- Selection is selection favoring the traits that allow their individuals to produce the most offspring. Species that maximize offspring quantity under the optimal conditions is said to be r-selected.

Option a. is given as, “r-selection”. r- Selection occurs when the population is under the carrying capacity of an unstable environment that makes the individuals reproduce quickly and more in numbers...

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