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

Three of the many recessive mutations in Drosophila melanogaster that affect body color, wing shape, or bristle morphology are black (b) body versus grey in wild type, dumpy (dp), obliquely truncated wings versus long wings in the male, and hooked (hk) bristles versus not hooked in the wild type. From a cross of a dumpy female with a black and hooked male, all of the F1 were wild type for all three of the characters. The testcross of an F1 female with a dumpy, black, hooked male gave the following results: Trait Number of individuals Wild type 169 Black 19 Black, hooked 301 Dumpy, hooked 21 Hooked, dumpy, black 172 Dumpy, black 6 Dumpy 305 Hooked 8 Determine the order of the genes and the mapping distance between genes. Determine the coefficient of confidence for the portion of the chromosome involved in the cross. How much interference takes place in the cross?

What happens to a microbes membrane at colder temperature?

Genes at loci f, m, and w are linked, but their order is unknown. The F1 heterozygotes from a cross of FFMMWW x ffmmww are test crossed. The most frequent phenotypes in the test cross progeny will be FMW and fmw regardless of what the gene order turns out to be. What classes of testcross progeny (phenotypes) would be least frequent if locus m is in the middle? What classes would be least frequent if locus f is in the middle? What classes would be least frequent if locus w is in the middle?

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.