The vertebrate classes that are paraphyletic. Introduction: Chordata is divided into Urochordata, Cephalochordata, and Vertebrata. The chordates have several characteristics such as the presence of the notochord, nerve cord, pharyngeal slits, and post-anal tail. The organisms may be placed under different groups based on the presence or absence of ancestor characters.

Question

Want to see more full solutions like this?

Answer 1

Question

Chapter 34, Problem 1IQ

Summary Introduction

To explain: The vertebrate classes that are paraphyletic.

Introduction: Chordata is divided into Urochordata, Cephalochordata, and Vertebrata. The chordates have several characteristics such as the presence of the notochord, nerve cord, pharyngeal slits, and post-anal tail. The organisms may be placed under different groups based on the presence or absence of ancestor characters.

Expert Solution & Answer

Explanation of Solution

Paraphyletic taxon includes only common ancestors but not all of its descendants. It is known for shared ancestral characters. The fish are paraphyletic. This is because the group consist of all other vertebrates that arose within fishes and Sarcopterygii is a sister taxon. Reptiles are also paraphyletic as birds arise from it and sister taxon to crocodilians. Amphibians may be considered as paraphyletic if extinct amphibians are taken into account as they are more closely related to amniotes.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

Are the invertebrates polyphyletic, monophyletic, or paraphyletic? (all organimsms shown are invertebrates except vertebrates)

what phylum in animal kingdom is now reclassified as a family?

What are the five major unranked taxa above the phylum level in animal taxonomy?

Answer 2

Question

Chapter 34, Problem 1IQ

Summary Introduction

To explain: The vertebrate classes that are paraphyletic.

Introduction: Chordata is divided into Urochordata, Cephalochordata, and Vertebrata. The chordates have several characteristics such as the presence of the notochord, nerve cord, pharyngeal slits, and post-anal tail. The organisms may be placed under different groups based on the presence or absence of ancestor characters.

Expert Solution & Answer

Explanation of Solution

Paraphyletic taxon includes only common ancestors but not all of its descendants. It is known for shared ancestral characters. The fish are paraphyletic. This is because the group consist of all other vertebrates that arose within fishes and Sarcopterygii is a sister taxon. Reptiles are also paraphyletic as birds arise from it and sister taxon to crocodilians. Amphibians may be considered as paraphyletic if extinct amphibians are taken into account as they are more closely related to amniotes.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Question

Chapter 34, Problem 1IQ

Summary Introduction

To explain: The vertebrate classes that are paraphyletic.

Introduction: Chordata is divided into Urochordata, Cephalochordata, and Vertebrata. The chordates have several characteristics such as the presence of the notochord, nerve cord, pharyngeal slits, and post-anal tail. The organisms may be placed under different groups based on the presence or absence of ancestor characters.

Expert Solution & Answer

Explanation of Solution

Paraphyletic taxon includes only common ancestors but not all of its descendants. It is known for shared ancestral characters. The fish are paraphyletic. This is because the group consist of all other vertebrates that arose within fishes and Sarcopterygii is a sister taxon. Reptiles are also paraphyletic as birds arise from it and sister taxon to crocodilians. Amphibians may be considered as paraphyletic if extinct amphibians are taken into account as they are more closely related to amniotes.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 34, Problem 1IQ

Summary Introduction

To explain: The vertebrate classes that are paraphyletic.

Introduction: Chordata is divided into Urochordata, Cephalochordata, and Vertebrata. The chordates have several characteristics such as the presence of the notochord, nerve cord, pharyngeal slits, and post-anal tail. The organisms may be placed under different groups based on the presence or absence of ancestor characters.

Expert Solution & Answer

Explanation of Solution

Paraphyletic taxon includes only common ancestors but not all of its descendants. It is known for shared ancestral characters. The fish are paraphyletic. This is because the group consist of all other vertebrates that arose within fishes and Sarcopterygii is a sister taxon. Reptiles are also paraphyletic as birds arise from it and sister taxon to crocodilians. Amphibians may be considered as paraphyletic if extinct amphibians are taken into account as they are more closely related to amniotes.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 34, Problem 1IQ

Summary Introduction

To explain: The vertebrate classes that are paraphyletic.

Introduction: Chordata is divided into Urochordata, Cephalochordata, and Vertebrata. The chordates have several characteristics such as the presence of the notochord, nerve cord, pharyngeal slits, and post-anal tail. The organisms may be placed under different groups based on the presence or absence of ancestor characters.

Expert Solution & Answer

Explanation of Solution

Paraphyletic taxon includes only common ancestors but not all of its descendants. It is known for shared ancestral characters. The fish are paraphyletic. This is because the group consist of all other vertebrates that arose within fishes and Sarcopterygii is a sister taxon. Reptiles are also paraphyletic as birds arise from it and sister taxon to crocodilians. Amphibians may be considered as paraphyletic if extinct amphibians are taken into account as they are more closely related to amniotes.

Answer 6

Chapter 34, Problem 1IQ

Summary Introduction

To explain: The vertebrate classes that are paraphyletic.

Introduction: Chordata is divided into Urochordata, Cephalochordata, and Vertebrata. The chordates have several characteristics such as the presence of the notochord, nerve cord, pharyngeal slits, and post-anal tail. The organisms may be placed under different groups based on the presence or absence of ancestor characters.

Expert Solution & Answer

Explanation of Solution

Paraphyletic taxon includes only common ancestors but not all of its descendants. It is known for shared ancestral characters. The fish are paraphyletic. This is because the group consist of all other vertebrates that arose within fishes and Sarcopterygii is a sister taxon. Reptiles are also paraphyletic as birds arise from it and sister taxon to crocodilians. Amphibians may be considered as paraphyletic if extinct amphibians are taken into account as they are more closely related to amniotes.

Answer 7

Chapter 34, Problem 1IQ

Summary Introduction

To explain: The vertebrate classes that are paraphyletic.

Introduction: Chordata is divided into Urochordata, Cephalochordata, and Vertebrata. The chordates have several characteristics such as the presence of the notochord, nerve cord, pharyngeal slits, and post-anal tail. The organisms may be placed under different groups based on the presence or absence of ancestor characters.

Answer 8

Expert Solution & Answer

Explanation of Solution

Paraphyletic taxon includes only common ancestors but not all of its descendants. It is known for shared ancestral characters. The fish are paraphyletic. This is because the group consist of all other vertebrates that arose within fishes and Sarcopterygii is a sister taxon. Reptiles are also paraphyletic as birds arise from it and sister taxon to crocodilians. Amphibians may be considered as paraphyletic if extinct amphibians are taken into account as they are more closely related to amniotes.