Whether the morphological diversity of animals has increased, decreased, or remained the same since the Cambrian. Introduction: Paleozoic era started with the Cambrian period. Initially, animal diversity was low in the Cambrian period. The interval of the first 20 million year of the Cambrian era saw an explosion of diversity in animals. During this interval, other classes of echinoderms, arthropods, and mollusks first appeared. This period is known as Cambrian explosion because morphological diversity of animals exploded in very less time.

Question

Want to see the full answer?

Answer 1

Question

Chapter 17, Problem 4PDT

Summary Introduction

To determine: Whether the morphological diversity of animals has increased, decreased, or remained the same since the Cambrian.

Introduction: Paleozoic era started with the Cambrian period. Initially, animal diversity was low in the Cambrian period. The interval of the first 20 million year of the Cambrian era saw an explosion of diversity in animals. During this interval, other classes of echinoderms, arthropods, and mollusks first appeared. This period is known as Cambrian explosion because morphological diversity of animals exploded in very less time.

Summary Introduction

To explain: The bias dictating the analysis of whether the morphological diversity of animals has increased, decreased, or remained the same since the Cambrian

Introduction: Paleozoic era started with the Cambrian period. Initially, animal diversity was low in the Cambrian period. The interval of the first 20 million year of the Cambrian era saw an explosion of diversity in animals. During this interval, other classes of echinoderms, arthropods, and mollusks first appeared. This period is known as Cambrian explosion because morphological diversity of animals exploded in very less time.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Examine the image of the relatedness of vertebrates represented in this phylogenetic tree. Which statements are correctly inferred from this tree? Select all that apply. A) The mammals are the outgroup in this tree. B) Birds and dinosaurs share a recent common ancestor. C) Mammals and birds are more closely related than any other species. D) Turtles are equally as diverged from lizards and snakes as they are from crocodiles. E) Lizards and snakes are more recently diverged from each other than they are from crocodiles.

Which of the following is true about the phylogeny of birds and reptiles. Question 35 options: a) Birds are more closely related to amphibians then they are to reptiles. b) Birds are a type of reptile, but are not related to dinosaurs. c) Birds and reptiles are the least related vertebrates. d) Birds are a type of reptile and are descended from a group of dinosaurs.

Which of the following statements regarding the diversification of animals is supported by the current available evidence? a) most animals belong to the clade Bilateria b) sponges are a paraphyletic group of organisms c) ctenophores are basal metazoans d) animals descended from multiple ancestors

Answer 2

Question

Chapter 17, Problem 4PDT

Summary Introduction

To determine: Whether the morphological diversity of animals has increased, decreased, or remained the same since the Cambrian.

Introduction: Paleozoic era started with the Cambrian period. Initially, animal diversity was low in the Cambrian period. The interval of the first 20 million year of the Cambrian era saw an explosion of diversity in animals. During this interval, other classes of echinoderms, arthropods, and mollusks first appeared. This period is known as Cambrian explosion because morphological diversity of animals exploded in very less time.

Summary Introduction

To explain: The bias dictating the analysis of whether the morphological diversity of animals has increased, decreased, or remained the same since the Cambrian

Introduction: Paleozoic era started with the Cambrian period. Initially, animal diversity was low in the Cambrian period. The interval of the first 20 million year of the Cambrian era saw an explosion of diversity in animals. During this interval, other classes of echinoderms, arthropods, and mollusks first appeared. This period is known as Cambrian explosion because morphological diversity of animals exploded in very less time.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 17, Problem 4PDT

Summary Introduction

To determine: Whether the morphological diversity of animals has increased, decreased, or remained the same since the Cambrian.

Introduction: Paleozoic era started with the Cambrian period. Initially, animal diversity was low in the Cambrian period. The interval of the first 20 million year of the Cambrian era saw an explosion of diversity in animals. During this interval, other classes of echinoderms, arthropods, and mollusks first appeared. This period is known as Cambrian explosion because morphological diversity of animals exploded in very less time.

Summary Introduction

To explain: The bias dictating the analysis of whether the morphological diversity of animals has increased, decreased, or remained the same since the Cambrian

Introduction: Paleozoic era started with the Cambrian period. Initially, animal diversity was low in the Cambrian period. The interval of the first 20 million year of the Cambrian era saw an explosion of diversity in animals. During this interval, other classes of echinoderms, arthropods, and mollusks first appeared. This period is known as Cambrian explosion because morphological diversity of animals exploded in very less time.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 17, Problem 4PDT

Summary Introduction

To determine: Whether the morphological diversity of animals has increased, decreased, or remained the same since the Cambrian.

Introduction: Paleozoic era started with the Cambrian period. Initially, animal diversity was low in the Cambrian period. The interval of the first 20 million year of the Cambrian era saw an explosion of diversity in animals. During this interval, other classes of echinoderms, arthropods, and mollusks first appeared. This period is known as Cambrian explosion because morphological diversity of animals exploded in very less time.

Summary Introduction

To explain: The bias dictating the analysis of whether the morphological diversity of animals has increased, decreased, or remained the same since the Cambrian

Introduction: Paleozoic era started with the Cambrian period. Initially, animal diversity was low in the Cambrian period. The interval of the first 20 million year of the Cambrian era saw an explosion of diversity in animals. During this interval, other classes of echinoderms, arthropods, and mollusks first appeared. This period is known as Cambrian explosion because morphological diversity of animals exploded in very less time.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 5

Chapter 17, Problem 4PDT

Summary Introduction

To determine: Whether the morphological diversity of animals has increased, decreased, or remained the same since the Cambrian.

Introduction: Paleozoic era started with the Cambrian period. Initially, animal diversity was low in the Cambrian period. The interval of the first 20 million year of the Cambrian era saw an explosion of diversity in animals. During this interval, other classes of echinoderms, arthropods, and mollusks first appeared. This period is known as Cambrian explosion because morphological diversity of animals exploded in very less time.

Summary Introduction

To explain: The bias dictating the analysis of whether the morphological diversity of animals has increased, decreased, or remained the same since the Cambrian

Introduction: Paleozoic era started with the Cambrian period. Initially, animal diversity was low in the Cambrian period. The interval of the first 20 million year of the Cambrian era saw an explosion of diversity in animals. During this interval, other classes of echinoderms, arthropods, and mollusks first appeared. This period is known as Cambrian explosion because morphological diversity of animals exploded in very less time.

Answer 6

Chapter 17, Problem 4PDT

Summary Introduction

To determine: Whether the morphological diversity of animals has increased, decreased, or remained the same since the Cambrian.

Introduction: Paleozoic era started with the Cambrian period. Initially, animal diversity was low in the Cambrian period. The interval of the first 20 million year of the Cambrian era saw an explosion of diversity in animals. During this interval, other classes of echinoderms, arthropods, and mollusks first appeared. This period is known as Cambrian explosion because morphological diversity of animals exploded in very less time.

Answer 7

Chapter 17, Problem 4PDT

Summary Introduction

To determine: Whether the morphological diversity of animals has increased, decreased, or remained the same since the Cambrian.

Introduction: Paleozoic era started with the Cambrian period. Initially, animal diversity was low in the Cambrian period. The interval of the first 20 million year of the Cambrian era saw an explosion of diversity in animals. During this interval, other classes of echinoderms, arthropods, and mollusks first appeared. This period is known as Cambrian explosion because morphological diversity of animals exploded in very less time.

Answer 8

Summary Introduction

To explain: The bias dictating the analysis of whether the morphological diversity of animals has increased, decreased, or remained the same since the Cambrian

Introduction: Paleozoic era started with the Cambrian period. Initially, animal diversity was low in the Cambrian period. The interval of the first 20 million year of the Cambrian era saw an explosion of diversity in animals. During this interval, other classes of echinoderms, arthropods, and mollusks first appeared. This period is known as Cambrian explosion because morphological diversity of animals exploded in very less time.

Answer 9

Summary Introduction

To explain: The bias dictating the analysis of whether the morphological diversity of animals has increased, decreased, or remained the same since the Cambrian

Introduction: Paleozoic era started with the Cambrian period. Initially, animal diversity was low in the Cambrian period. The interval of the first 20 million year of the Cambrian era saw an explosion of diversity in animals. During this interval, other classes of echinoderms, arthropods, and mollusks first appeared. This period is known as Cambrian explosion because morphological diversity of animals exploded in very less time.

Answer 10

Expert Solution & Answer

Answer 11

Expert Solution & Answer

Answer 12

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 13

Ch. 17 - Prob. 1PDT Ch. 17 - Prob. 2PDT Ch. 17 - Prob. 3PDT Ch. 17 - Prob. 4PDT Ch. 17 - Prob. 5PDT Ch. 17 - Prob. 6PDT Ch. 17 - Prob. 7PDT Ch. 17 - Prob. 8PDT Ch. 17 - Prob. 9PDT Ch. 17 - Prob. 10PDT

Concept explainers

Videos

Want to see the full answer?

Chapter 17 Solutions