The skeleton provides support, protection, rigidity and the surface for attachment of muscles. There are several other significant roles which the skeleton plays in the body. There are different kinds of skeleton which are present in the animals, namely-hydrostatic skeleton, exoskeleton, and endoskeleton.

Question

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Answer 1

Question

Chapter 39, Problem 1A

Summary Introduction

Introduction:

The skeleton provides support, protection, rigidity and the surface for attachment of muscles. There are several other significant roles which the skeleton plays in the body. There are different kinds of skeleton which are present in the animals, namely-hydrostatic skeleton, exoskeleton, and endoskeleton.

Expert Solution & Answer

Answer to Problem 1A

Correct answer:

The coelom of earthworm, trunk of elephant, and muscular foot of clam are examples of hydrostatic skeleton. Therefore, option (b) is correct.

Explanation of Solution

Explanation for the correct answer:

In certain animals, the fluid-filled coelom or the gastrovascular tract behaves as the hard skeleton. This kind of skeleton is known as the hydrostatic skeleton. This uses the pressure of the fluid for providing resistance and support to the muscle contraction. The coelom of earthworm is filled with the fluid. The foot of the clam and the trunk of elephant contain cells which are filled with the fluid; the fluid provides rigidity to the organelles.

Option (b) is given as “hydrostatic”.

As, “the coelom of earth worm, the cells in the muscular foot and trunk of elephant consists of fluid that act as hydrostatic skeleton”, is the right answer.

Hence, option (b) is correct.

Explanations for incorrect answers:

Option (a) is given as “exoskeleton”.

The exoskeleton is not present in the earthworm, clam, and trunk of elephant. So, it is a wrong answer.

Option (c) is given as “jointed”.

There is no such kind of skeleton named as joined. So, it is a wrong answer.

Option (d) is given as “longitudinal”.

There is no such kind of skeleton named as longitudinal. The longitudinal cells are present in the earthworm but they are not present in the clam and elephant. So, it is a wrong answer.

Hence, options (a), (c), and (d) are incorrect.

Conclusion

The coelom of earthworm consists of fluid which acts as the hydrostatic skeleton. The cells of the foot of the clam and the trunk of elephant consist of fluid which acts as the hydrostatic skeleton and provides rigidity to the part of the body.

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Answer 2

Question

Chapter 39, Problem 1A

Summary Introduction

Introduction:

The skeleton provides support, protection, rigidity and the surface for attachment of muscles. There are several other significant roles which the skeleton plays in the body. There are different kinds of skeleton which are present in the animals, namely-hydrostatic skeleton, exoskeleton, and endoskeleton.

Expert Solution & Answer

Answer to Problem 1A

Correct answer:

The coelom of earthworm, trunk of elephant, and muscular foot of clam are examples of hydrostatic skeleton. Therefore, option (b) is correct.

Explanation of Solution

Explanation for the correct answer:

In certain animals, the fluid-filled coelom or the gastrovascular tract behaves as the hard skeleton. This kind of skeleton is known as the hydrostatic skeleton. This uses the pressure of the fluid for providing resistance and support to the muscle contraction. The coelom of earthworm is filled with the fluid. The foot of the clam and the trunk of elephant contain cells which are filled with the fluid; the fluid provides rigidity to the organelles.

Option (b) is given as “hydrostatic”.

As, “the coelom of earth worm, the cells in the muscular foot and trunk of elephant consists of fluid that act as hydrostatic skeleton”, is the right answer.

Hence, option (b) is correct.

Explanations for incorrect answers:

Option (a) is given as “exoskeleton”.

The exoskeleton is not present in the earthworm, clam, and trunk of elephant. So, it is a wrong answer.

Option (c) is given as “jointed”.

There is no such kind of skeleton named as joined. So, it is a wrong answer.

Option (d) is given as “longitudinal”.

There is no such kind of skeleton named as longitudinal. The longitudinal cells are present in the earthworm but they are not present in the clam and elephant. So, it is a wrong answer.

Hence, options (a), (c), and (d) are incorrect.

Conclusion

The coelom of earthworm consists of fluid which acts as the hydrostatic skeleton. The cells of the foot of the clam and the trunk of elephant consist of fluid which acts as the hydrostatic skeleton and provides rigidity to the part of the body.

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Answer 3

Question

Chapter 39, Problem 1A

Summary Introduction

Introduction:

The skeleton provides support, protection, rigidity and the surface for attachment of muscles. There are several other significant roles which the skeleton plays in the body. There are different kinds of skeleton which are present in the animals, namely-hydrostatic skeleton, exoskeleton, and endoskeleton.

Expert Solution & Answer

Answer to Problem 1A

Correct answer:

The coelom of earthworm, trunk of elephant, and muscular foot of clam are examples of hydrostatic skeleton. Therefore, option (b) is correct.

Explanation of Solution

Explanation for the correct answer:

In certain animals, the fluid-filled coelom or the gastrovascular tract behaves as the hard skeleton. This kind of skeleton is known as the hydrostatic skeleton. This uses the pressure of the fluid for providing resistance and support to the muscle contraction. The coelom of earthworm is filled with the fluid. The foot of the clam and the trunk of elephant contain cells which are filled with the fluid; the fluid provides rigidity to the organelles.

Option (b) is given as “hydrostatic”.

As, “the coelom of earth worm, the cells in the muscular foot and trunk of elephant consists of fluid that act as hydrostatic skeleton”, is the right answer.

Hence, option (b) is correct.

Explanations for incorrect answers:

Option (a) is given as “exoskeleton”.

The exoskeleton is not present in the earthworm, clam, and trunk of elephant. So, it is a wrong answer.

Option (c) is given as “jointed”.

There is no such kind of skeleton named as joined. So, it is a wrong answer.

Option (d) is given as “longitudinal”.

There is no such kind of skeleton named as longitudinal. The longitudinal cells are present in the earthworm but they are not present in the clam and elephant. So, it is a wrong answer.

Hence, options (a), (c), and (d) are incorrect.

Conclusion

The coelom of earthworm consists of fluid which acts as the hydrostatic skeleton. The cells of the foot of the clam and the trunk of elephant consist of fluid which acts as the hydrostatic skeleton and provides rigidity to the part of the body.

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Answer 4

Question

Chapter 39, Problem 1A

Summary Introduction

Introduction:

The skeleton provides support, protection, rigidity and the surface for attachment of muscles. There are several other significant roles which the skeleton plays in the body. There are different kinds of skeleton which are present in the animals, namely-hydrostatic skeleton, exoskeleton, and endoskeleton.

Expert Solution & Answer

Answer to Problem 1A

Correct answer:

The coelom of earthworm, trunk of elephant, and muscular foot of clam are examples of hydrostatic skeleton. Therefore, option (b) is correct.

Explanation of Solution

Explanation for the correct answer:

In certain animals, the fluid-filled coelom or the gastrovascular tract behaves as the hard skeleton. This kind of skeleton is known as the hydrostatic skeleton. This uses the pressure of the fluid for providing resistance and support to the muscle contraction. The coelom of earthworm is filled with the fluid. The foot of the clam and the trunk of elephant contain cells which are filled with the fluid; the fluid provides rigidity to the organelles.

Option (b) is given as “hydrostatic”.

As, “the coelom of earth worm, the cells in the muscular foot and trunk of elephant consists of fluid that act as hydrostatic skeleton”, is the right answer.

Hence, option (b) is correct.

Explanations for incorrect answers:

Option (a) is given as “exoskeleton”.

The exoskeleton is not present in the earthworm, clam, and trunk of elephant. So, it is a wrong answer.

Option (c) is given as “jointed”.

There is no such kind of skeleton named as joined. So, it is a wrong answer.

Option (d) is given as “longitudinal”.

There is no such kind of skeleton named as longitudinal. The longitudinal cells are present in the earthworm but they are not present in the clam and elephant. So, it is a wrong answer.

Hence, options (a), (c), and (d) are incorrect.

Conclusion

The coelom of earthworm consists of fluid which acts as the hydrostatic skeleton. The cells of the foot of the clam and the trunk of elephant consist of fluid which acts as the hydrostatic skeleton and provides rigidity to the part of the body.

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Answer 5

Chapter 39, Problem 1A

Summary Introduction

Introduction:

The skeleton provides support, protection, rigidity and the surface for attachment of muscles. There are several other significant roles which the skeleton plays in the body. There are different kinds of skeleton which are present in the animals, namely-hydrostatic skeleton, exoskeleton, and endoskeleton.

Expert Solution & Answer

Answer to Problem 1A

Correct answer:

The coelom of earthworm, trunk of elephant, and muscular foot of clam are examples of hydrostatic skeleton. Therefore, option (b) is correct.

Explanation of Solution

Explanation for the correct answer:

In certain animals, the fluid-filled coelom or the gastrovascular tract behaves as the hard skeleton. This kind of skeleton is known as the hydrostatic skeleton. This uses the pressure of the fluid for providing resistance and support to the muscle contraction. The coelom of earthworm is filled with the fluid. The foot of the clam and the trunk of elephant contain cells which are filled with the fluid; the fluid provides rigidity to the organelles.

Option (b) is given as “hydrostatic”.

As, “the coelom of earth worm, the cells in the muscular foot and trunk of elephant consists of fluid that act as hydrostatic skeleton”, is the right answer.

Hence, option (b) is correct.

Explanations for incorrect answers:

Option (a) is given as “exoskeleton”.

The exoskeleton is not present in the earthworm, clam, and trunk of elephant. So, it is a wrong answer.

Option (c) is given as “jointed”.

There is no such kind of skeleton named as joined. So, it is a wrong answer.

Option (d) is given as “longitudinal”.

There is no such kind of skeleton named as longitudinal. The longitudinal cells are present in the earthworm but they are not present in the clam and elephant. So, it is a wrong answer.

Hence, options (a), (c), and (d) are incorrect.

Conclusion

The coelom of earthworm consists of fluid which acts as the hydrostatic skeleton. The cells of the foot of the clam and the trunk of elephant consist of fluid which acts as the hydrostatic skeleton and provides rigidity to the part of the body.

Answer 6

Chapter 39, Problem 1A

Summary Introduction

Introduction:

The skeleton provides support, protection, rigidity and the surface for attachment of muscles. There are several other significant roles which the skeleton plays in the body. There are different kinds of skeleton which are present in the animals, namely-hydrostatic skeleton, exoskeleton, and endoskeleton.

Expert Solution & Answer

Answer to Problem 1A

Correct answer:

The coelom of earthworm, trunk of elephant, and muscular foot of clam are examples of hydrostatic skeleton. Therefore, option (b) is correct.

Explanation of Solution

Explanation for the correct answer:

In certain animals, the fluid-filled coelom or the gastrovascular tract behaves as the hard skeleton. This kind of skeleton is known as the hydrostatic skeleton. This uses the pressure of the fluid for providing resistance and support to the muscle contraction. The coelom of earthworm is filled with the fluid. The foot of the clam and the trunk of elephant contain cells which are filled with the fluid; the fluid provides rigidity to the organelles.

Option (b) is given as “hydrostatic”.

As, “the coelom of earth worm, the cells in the muscular foot and trunk of elephant consists of fluid that act as hydrostatic skeleton”, is the right answer.

Hence, option (b) is correct.

Explanations for incorrect answers:

Option (a) is given as “exoskeleton”.

The exoskeleton is not present in the earthworm, clam, and trunk of elephant. So, it is a wrong answer.

Option (c) is given as “jointed”.

There is no such kind of skeleton named as joined. So, it is a wrong answer.

Option (d) is given as “longitudinal”.

There is no such kind of skeleton named as longitudinal. The longitudinal cells are present in the earthworm but they are not present in the clam and elephant. So, it is a wrong answer.

Hence, options (a), (c), and (d) are incorrect.

Conclusion

The coelom of earthworm consists of fluid which acts as the hydrostatic skeleton. The cells of the foot of the clam and the trunk of elephant consist of fluid which acts as the hydrostatic skeleton and provides rigidity to the part of the body.

Answer 7

Chapter 39, Problem 1A

Summary Introduction

Introduction:

The skeleton provides support, protection, rigidity and the surface for attachment of muscles. There are several other significant roles which the skeleton plays in the body. There are different kinds of skeleton which are present in the animals, namely-hydrostatic skeleton, exoskeleton, and endoskeleton.

Answer 8

Expert Solution & Answer

Answer to Problem 1A

Correct answer:

The coelom of earthworm, trunk of elephant, and muscular foot of clam are examples of hydrostatic skeleton. Therefore, option (b) is correct.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Explanation for the correct answer:

In certain animals, the fluid-filled coelom or the gastrovascular tract behaves as the hard skeleton. This kind of skeleton is known as the hydrostatic skeleton. This uses the pressure of the fluid for providing resistance and support to the muscle contraction. The coelom of earthworm is filled with the fluid. The foot of the clam and the trunk of elephant contain cells which are filled with the fluid; the fluid provides rigidity to the organelles.

Option (b) is given as “hydrostatic”.

As, “the coelom of earth worm, the cells in the muscular foot and trunk of elephant consists of fluid that act as hydrostatic skeleton”, is the right answer.

Hence, option (b) is correct.

Explanations for incorrect answers:

Option (a) is given as “exoskeleton”.

The exoskeleton is not present in the earthworm, clam, and trunk of elephant. So, it is a wrong answer.

Option (c) is given as “jointed”.

There is no such kind of skeleton named as joined. So, it is a wrong answer.

Option (d) is given as “longitudinal”.

There is no such kind of skeleton named as longitudinal. The longitudinal cells are present in the earthworm but they are not present in the clam and elephant. So, it is a wrong answer.

Hence, options (a), (c), and (d) are incorrect.

Answer 12

Conclusion

The coelom of earthworm consists of fluid which acts as the hydrostatic skeleton. The cells of the foot of the clam and the trunk of elephant consist of fluid which acts as the hydrostatic skeleton and provides rigidity to the part of the body.

Answer 13

Ch. 39.1 - Prob. 1CYP Ch. 39.1 - Prob. 2CYP Ch. 39.1 - Prob. 3CYP Ch. 39.2 - Describe the functions of osteoblasts,...Ch. 39.2 - Prob. 2CYP Ch. 39.2 - Prob. 3CYP Ch. 39.3 - Define an antagonistic pair of muscles.Ch. 39.3 - Describe the microscopic levels of structure in a...Ch. 39.3 - Prob. 3CYP Ch. 39 - Prob. 1A

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Answer to Problem 1A

Explanation of Solution

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Chapter 39 Solutions