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

You generate a transgenic mouse line with a lox-stop-lox sequence upstream of a dominant-negative Notch fused to GFP. Upon crossing this mouse with another mouse line expressing ectoderm-specific Cre, what would you expect for the phenotype of neuronal differentiation in the resulting embryos?

Hair follicle formation is thought to result from a reaction-diffusion mechanism with Wnt and its antagonist Dkk1. How is Dkk1 regulated by Wnt? Describe specific cis-regulatory elements and the net effect on Dkk1 expression.

Limetown S1E4 Transcript: E n 2025SP-BIO-111-PSNT1: Natu X Natural Selection in insects X + newconnect.mheducation.com/student/todo CA NATURAL SELECTION NATURAL SELECTION IN INSECTS (HARDY-WEINBERG LAW) INTRODUCTION LABORATORY SIMULATION A Lab Data Is this the correct allele frequency? Is this the correct genotype frequency? Is this the correct phenotype frequency? Total 1000 Phenotype Frequency Typica Carbonaria Allele Frequency 9 P 635 823 968 1118 1435 Color Initial Frequency Light 0.25 Dark 0.75 Frequency Gs 0.02 Allele Initial Allele Frequency Gs Allele Frequency d 0.50 0 D 0.50 0 Genotype Frequency Moths Genotype Color Moths Released Initial Frequency Frequency G5 Number of Moths Gs NC - X

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.