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Step 1 - Below is a basic phylogenetic tree for how canids evolved. For a group to divide into two species, the gene pool must somehow be divided so that some members of the species can no longer reproduce with some others. This is called reproductive isolation. There are many ways this can happen. Explain how each of the following could have led to what you see at the right. Behavioral Isolation: Geographic Isolation: Temporal Isolation: Phylogeny of interfertile Canis (wolf) species Based on Wilson et al. (2000) and Lindblad-Toh et al. (2005) 2-3 million years ago Canis latrans 150,000- 300,000 years ago Canis lycaon 1-2 million years ago Canis rufus Ancestral wolf 3-4 million years ago Canis simensis Canis aureus Canis lupus

Step 1 - Below is a basic phylogenetic tree for how canids evolved. For a group to divide into two species, the gene pool must somehow be divided so that some members of the species can no longer reproduce with some others. This is called reproductive isolation. There are many ways this can happen. Explain how each of the following could have led to what you see at the right. Behavioral Isolation: Geographic Isolation: Temporal Isolation: Phylogeny of interfertile Canis (wolf) species Based on Wilson et al. (2000) and Lindblad-Toh et al. (2005) 2-3 million years ago Canis latrans 150,000- 300,000 years ago Canis lycaon 1-2 million years ago Canis rufus Ancestral wolf 3-4 million years ago Canis simensis Canis aureus Canis lupus

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Step 1 - Below is a basic phylogenetic tree for how canids evolved. For a group to divide into two species, the gene pool must somehow be divided so that some members of the species can no longer reproduce with some others. This is called reproductive isolation. There are many ways this can happen. Explain how each of the following could have led to what you see at the right. Behavioral Isolation: Geographic Isolation: Temporal Isolation: Phylogeny of interfertile Canis (wolf) species Based on Wilson et al. (2000) and Lindblad-Toh et al. (2005) 2-3 million years ago Canis latrans 150,000- 300,000 years ago Canis lycaom 1-2 million years ago Canis rufus Ancestral wolf 3-4 million years ago Canis simensis Canis aureus Canis lupus
Transcribed Image Text:Step 1 - Below is a basic phylogenetic tree for how canids evolved. For a group to divide into two species, the gene pool must somehow be divided so that some members of the species can no longer reproduce with some others. This is called reproductive isolation. There are many ways this can happen. Explain how each of the following could have led to what you see at the right. Behavioral Isolation: Geographic Isolation: Temporal Isolation: Phylogeny of interfertile Canis (wolf) species Based on Wilson et al. (2000) and Lindblad-Toh et al. (2005) 2-3 million years ago Canis latrans 150,000- 300,000 years ago Canis lycaom 1-2 million years ago Canis rufus Ancestral wolf 3-4 million years ago Canis simensis Canis aureus Canis lupus
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