Campbell Biology
Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 25, Problem 9TYU
Summary Introduction

To explain: The scientific inquiry of herbivore evolutions by adaptive radiation.

Introduction: The evolution of many species from a single ancestor is termed as adaptive radiation. It is a continuous process, where the diversification of species is in a common ancestral line. Species from a single ancestor can get fragmented into different subpopulations when isolated geographically and exposed to different environmental conditions. The species in a new habitat could establish their role in a new environment and become different from the common ancestor.

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Show a phylogenetic tree that reflects the evolutionary relationships between  the following taxa.  All of the taxa should be on one (1) tree; var. stands for variety, a subspecific taxon (just as a genus can contain several to many species, a species can include several varieties). Family Fagaceae Quercus rubra var. rubra Red oak Quercus rubra var. borealis northern red oak Quercus velutina  Black oak Fagus grandifolia  Beech Castanea dentata  American chestnut Castanea pumila var. pumila  Chinquapin Castanea pumila var. ashei Coastal chinquapin Family Betulaceae Betula nigra  River birch Betula papyrifera  Paper birch Corylus cornuta  Beaked hazel-nut Corylus americana  American hazel-nut    asap please
Constructing a Phylogenetic Tree Now, you are going to create and the interpret your own phylogenetic tree. Take a look at the characteristics for these organisms. Plant Group Photosynthesis? Seeds? Water-conducting Tissue? Flowers? Ferns X Gymnosperms Mosses Angiosperms X Using the characteristics from the table above, determine where each of these organisms belongs on the tree below, then answer the questions. D A В Being able to do photosynthesis is an example of a: O shared derived character O shared ancestral character
Constructing a Phylogenetic Tree Now, you are going to create and the interpret your own phylogenetic tree. Take a look at the characteristics for these organisms. Plant Group Photosynthesis? Seeds? Water-conducting Tissue? Flowers? Ferns X Gymnosperms Mosses Angiosperms Using the characteristics from the table above, determine where each of these organisms belongs on the tree below, then answer the questions. A В What characteristic appears just before group C branches off (the starred location)? flowers water conducting tissue seeds O photosynthesis

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