Evolution
4th Edition
ISBN: 9781605356051
Author: Douglas Futuyma, Mark Kirkpatrick
Publisher: SINAUER
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Chapter 19, Problem 4PDT
Summary Introduction
To explain: The different ways of the testing hypothesis that a clade is composed of specialized species over a period of time.
Introduction: A clade of species consists of specialized species evolved over a period of time. There are a number of factors which contribute to the evolution of specialized species. The study of differences in the extant species and fossil records has helped to understand the reasons for the specialization of different species of plants and animals.
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Students have asked these similar questions
In a phylogenetic analysis of several bird species, a researcher uses a species of reptile as an
outgroup. Which of the following is the main reason for including an outgroup in the analysis?
To identify ancestral traits shared by the bird species
To determine the overall genetic diversity of the bird species
To establish a new monophyletic group including both bird and reptile species
To analyze the convergent evolution of bird and reptile species
n which situation would it make sense to use the morphological species concept?
When you are able to collect data about how individuals in your study use their habitat, but you are unable to determine if they interbreed
When working with fossils from extinct organisms
When you only have genetic data about each organism in your study
When you are not able to collect data about how individuals in your study use their habitat, but you are able to collect reproductive data
When constructing phylogenetic trees, what is the purpose of applying maximum parsimony?
Parsimony allows the researcher to "root" the tree.
For trees based on morphology, the most parsimonious tree requires the maximum evolutionary events.
The outgroup roots the tree, allowing the principle of parsimony to be applied.
For trees based on morphology, the most parsimonious is the one that uses the simplest explanation of evolutionary events.
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