The feeding habits of chaetognaths. Introduction: The word Chaetognatha is derived from the Greek word chaite, long flowing hair, + gnathos, jaws. It depicts the sickle-shaped bristles on each side of their mouth. Chaetognaths are also called as arrow worms. They are marine planktonic predators.

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Answer 1

Question

Chapter 22, Problem 1RQ

Summary Introduction

To determine: The feeding habits of chaetognaths.

Introduction: The word Chaetognatha is derived from the Greek word chaite, long flowing hair, + gnathos, jaws. It depicts the sickle-shaped bristles on each side of their mouth. Chaetognaths are also called as arrow worms. They are marine planktonic predators.

Expert Solution & Answer

Explanation of Solution

Arrow worms consist of a head, trunk and postanal tail. Their head consists of a large depression called a vestibule which leads to the mouth. This vestibule comprises teeth and edged on each side by curved chitinous spines. The teeth and spines are generally covered by a hood formed from a fold in a neck. A chaetognath in the presence of prey retracts it hood and captures the prey by spreading teeth and spines apart. Once the prey is captured a chaetognath shuts the teeth-spines assembly with tremendous speed. Arrow worms mostly feed on crustaceans, small fish and other chaetognaths.

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Answer 2

Question

Chapter 22, Problem 1RQ

Summary Introduction

To determine: The feeding habits of chaetognaths.

Introduction: The word Chaetognatha is derived from the Greek word chaite, long flowing hair, + gnathos, jaws. It depicts the sickle-shaped bristles on each side of their mouth. Chaetognaths are also called as arrow worms. They are marine planktonic predators.

Expert Solution & Answer

Explanation of Solution

Arrow worms consist of a head, trunk and postanal tail. Their head consists of a large depression called a vestibule which leads to the mouth. This vestibule comprises teeth and edged on each side by curved chitinous spines. The teeth and spines are generally covered by a hood formed from a fold in a neck. A chaetognath in the presence of prey retracts it hood and captures the prey by spreading teeth and spines apart. Once the prey is captured a chaetognath shuts the teeth-spines assembly with tremendous speed. Arrow worms mostly feed on crustaceans, small fish and other chaetognaths.

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Answer 3

Question

Chapter 22, Problem 1RQ

Summary Introduction

To determine: The feeding habits of chaetognaths.

Introduction: The word Chaetognatha is derived from the Greek word chaite, long flowing hair, + gnathos, jaws. It depicts the sickle-shaped bristles on each side of their mouth. Chaetognaths are also called as arrow worms. They are marine planktonic predators.

Expert Solution & Answer

Explanation of Solution

Arrow worms consist of a head, trunk and postanal tail. Their head consists of a large depression called a vestibule which leads to the mouth. This vestibule comprises teeth and edged on each side by curved chitinous spines. The teeth and spines are generally covered by a hood formed from a fold in a neck. A chaetognath in the presence of prey retracts it hood and captures the prey by spreading teeth and spines apart. Once the prey is captured a chaetognath shuts the teeth-spines assembly with tremendous speed. Arrow worms mostly feed on crustaceans, small fish and other chaetognaths.

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Answer 4

Question

Chapter 22, Problem 1RQ

Summary Introduction

To determine: The feeding habits of chaetognaths.

Introduction: The word Chaetognatha is derived from the Greek word chaite, long flowing hair, + gnathos, jaws. It depicts the sickle-shaped bristles on each side of their mouth. Chaetognaths are also called as arrow worms. They are marine planktonic predators.

Expert Solution & Answer

Explanation of Solution

Arrow worms consist of a head, trunk and postanal tail. Their head consists of a large depression called a vestibule which leads to the mouth. This vestibule comprises teeth and edged on each side by curved chitinous spines. The teeth and spines are generally covered by a hood formed from a fold in a neck. A chaetognath in the presence of prey retracts it hood and captures the prey by spreading teeth and spines apart. Once the prey is captured a chaetognath shuts the teeth-spines assembly with tremendous speed. Arrow worms mostly feed on crustaceans, small fish and other chaetognaths.

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Answer 5

Chapter 22, Problem 1RQ

Summary Introduction

To determine: The feeding habits of chaetognaths.

Introduction: The word Chaetognatha is derived from the Greek word chaite, long flowing hair, + gnathos, jaws. It depicts the sickle-shaped bristles on each side of their mouth. Chaetognaths are also called as arrow worms. They are marine planktonic predators.

Expert Solution & Answer

Explanation of Solution

Arrow worms consist of a head, trunk and postanal tail. Their head consists of a large depression called a vestibule which leads to the mouth. This vestibule comprises teeth and edged on each side by curved chitinous spines. The teeth and spines are generally covered by a hood formed from a fold in a neck. A chaetognath in the presence of prey retracts it hood and captures the prey by spreading teeth and spines apart. Once the prey is captured a chaetognath shuts the teeth-spines assembly with tremendous speed. Arrow worms mostly feed on crustaceans, small fish and other chaetognaths.

Answer 6

Chapter 22, Problem 1RQ

Summary Introduction

To determine: The feeding habits of chaetognaths.

Introduction: The word Chaetognatha is derived from the Greek word chaite, long flowing hair, + gnathos, jaws. It depicts the sickle-shaped bristles on each side of their mouth. Chaetognaths are also called as arrow worms. They are marine planktonic predators.

Expert Solution & Answer

Explanation of Solution

Arrow worms consist of a head, trunk and postanal tail. Their head consists of a large depression called a vestibule which leads to the mouth. This vestibule comprises teeth and edged on each side by curved chitinous spines. The teeth and spines are generally covered by a hood formed from a fold in a neck. A chaetognath in the presence of prey retracts it hood and captures the prey by spreading teeth and spines apart. Once the prey is captured a chaetognath shuts the teeth-spines assembly with tremendous speed. Arrow worms mostly feed on crustaceans, small fish and other chaetognaths.

Answer 7

Chapter 22, Problem 1RQ

Summary Introduction

To determine: The feeding habits of chaetognaths.

Introduction: The word Chaetognatha is derived from the Greek word chaite, long flowing hair, + gnathos, jaws. It depicts the sickle-shaped bristles on each side of their mouth. Chaetognaths are also called as arrow worms. They are marine planktonic predators.

Answer 8

Expert Solution & Answer

Explanation of Solution

Arrow worms consist of a head, trunk and postanal tail. Their head consists of a large depression called a vestibule which leads to the mouth. This vestibule comprises teeth and edged on each side by curved chitinous spines. The teeth and spines are generally covered by a hood formed from a fold in a neck. A chaetognath in the presence of prey retracts it hood and captures the prey by spreading teeth and spines apart. Once the prey is captured a chaetognath shuts the teeth-spines assembly with tremendous speed. Arrow worms mostly feed on crustaceans, small fish and other chaetognaths.

Answer 9

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Answer 10

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Answer 11

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The feeding habits of chaetognaths. Introduction: The word Chaetognatha is derived from the Greek word chaite, long flowing hair, + gnathos, jaws. It depicts the sickle-shaped bristles on each side of their mouth. Chaetognaths are also called as arrow worms. They are marine planktonic predators.

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