The given blank space in the statement, “both gills and lungs are present in adult ___. Sharks and rays have internal skeletons composed of _. The vertebrate group with the largest number of species is . Lampreys have teeth but lack __.” Introduction: The gills are the distinguishing features of fishes, while the lungs are mostly found in the members of the higher class of vertebrata. The sharks and rays do not possess a swim bladder, unlike other fishes. The lampreys and the hagfishes are considered to be sisters taxonomically. The term cyclostomes are used collectively for both these fishes. Both these fishes have an eel-like elongated body and lack the usual fins, which occur in the fishes.

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Answer 1

Question

Chapter 25, Problem 3FTB

Summary Introduction

To review:

The given blank space in the statement, “both gills and lungs are present in adult ___. Sharks and rays have internal skeletons composed of _. The vertebrate group with the largest number of species is . Lampreys have teeth but lack __.”

Introduction:

The gills are the distinguishing features of fishes, while the lungs are mostly found in the members of the higher class of vertebrata. The sharks and rays do not possess a swim bladder, unlike other fishes. The lampreys and the hagfishes are considered to be sisters taxonomically. The term cyclostomes are used collectively for both these fishes. Both these fishes have an eel-like elongated body and lack the usual fins, which occur in the fishes.

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Answer 2

Question

Chapter 25, Problem 3FTB

Summary Introduction

To review:

The given blank space in the statement, “both gills and lungs are present in adult ___. Sharks and rays have internal skeletons composed of _. The vertebrate group with the largest number of species is . Lampreys have teeth but lack __.”

Introduction:

The gills are the distinguishing features of fishes, while the lungs are mostly found in the members of the higher class of vertebrata. The sharks and rays do not possess a swim bladder, unlike other fishes. The lampreys and the hagfishes are considered to be sisters taxonomically. The term cyclostomes are used collectively for both these fishes. Both these fishes have an eel-like elongated body and lack the usual fins, which occur in the fishes.

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Answer 3

Question

Chapter 25, Problem 3FTB

Summary Introduction

To review:

The given blank space in the statement, “both gills and lungs are present in adult ___. Sharks and rays have internal skeletons composed of _. The vertebrate group with the largest number of species is . Lampreys have teeth but lack __.”

Introduction:

The gills are the distinguishing features of fishes, while the lungs are mostly found in the members of the higher class of vertebrata. The sharks and rays do not possess a swim bladder, unlike other fishes. The lampreys and the hagfishes are considered to be sisters taxonomically. The term cyclostomes are used collectively for both these fishes. Both these fishes have an eel-like elongated body and lack the usual fins, which occur in the fishes.

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Answer 4

Question

Chapter 25, Problem 3FTB

Summary Introduction

To review:

The given blank space in the statement, “both gills and lungs are present in adult ___. Sharks and rays have internal skeletons composed of _. The vertebrate group with the largest number of species is . Lampreys have teeth but lack __.”

Introduction:

The gills are the distinguishing features of fishes, while the lungs are mostly found in the members of the higher class of vertebrata. The sharks and rays do not possess a swim bladder, unlike other fishes. The lampreys and the hagfishes are considered to be sisters taxonomically. The term cyclostomes are used collectively for both these fishes. Both these fishes have an eel-like elongated body and lack the usual fins, which occur in the fishes.

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Answer 5

Chapter 25, Problem 3FTB

Summary Introduction

To review:

The given blank space in the statement, “both gills and lungs are present in adult ___. Sharks and rays have internal skeletons composed of _. The vertebrate group with the largest number of species is . Lampreys have teeth but lack __.”

Introduction:

The gills are the distinguishing features of fishes, while the lungs are mostly found in the members of the higher class of vertebrata. The sharks and rays do not possess a swim bladder, unlike other fishes. The lampreys and the hagfishes are considered to be sisters taxonomically. The term cyclostomes are used collectively for both these fishes. Both these fishes have an eel-like elongated body and lack the usual fins, which occur in the fishes.

Answer 6

Chapter 25, Problem 3FTB

Summary Introduction

To review:

The given blank space in the statement, “both gills and lungs are present in adult ___. Sharks and rays have internal skeletons composed of _. The vertebrate group with the largest number of species is . Lampreys have teeth but lack __.”

Introduction:

The gills are the distinguishing features of fishes, while the lungs are mostly found in the members of the higher class of vertebrata. The sharks and rays do not possess a swim bladder, unlike other fishes. The lampreys and the hagfishes are considered to be sisters taxonomically. The term cyclostomes are used collectively for both these fishes. Both these fishes have an eel-like elongated body and lack the usual fins, which occur in the fishes.

Answer 7

Chapter 25, Problem 3FTB

Summary Introduction

To review:

The given blank space in the statement, “both gills and lungs are present in adult ___. Sharks and rays have internal skeletons composed of _. The vertebrate group with the largest number of species is . Lampreys have teeth but lack __.”

Introduction:

The gills are the distinguishing features of fishes, while the lungs are mostly found in the members of the higher class of vertebrata. The sharks and rays do not possess a swim bladder, unlike other fishes. The lampreys and the hagfishes are considered to be sisters taxonomically. The term cyclostomes are used collectively for both these fishes. Both these fishes have an eel-like elongated body and lack the usual fins, which occur in the fishes.

Answer 8

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Answer 10

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Answer 11

Ch. 25 - The two groups of mammals with the largest number...Ch. 25 - More than half of all vertebrate species are a....Ch. 25 - 3. Which of the following is not a characteristic...Ch. 25 - 4. Adult frogs and toads obtain oxygen...Ch. 25 - 5. Hagfishes a. are predators of live...Ch. 25 - In chordates, the nerve cord is ________ and runs...Ch. 25 - Animals that are chordates but not vertebrates...Ch. 25 - Prob. 3FTB Ch. 25 - Among tetrapod groups, hair is found in; the skin...Ch. 25 - The only mammals that lay eggs are. The only...

Solution Summary: The author explains that gills and lungs are present in adult lungfishes, while rays have internal skeletons composed of cartilage.

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Chapter 25 Solutions