A skeleton is a structure that provides support and protection. It plays an important role in locomotion. Exoskeleton and endoskeleton are the two major types of skeletons found in animals.

Question

Want to see more full solutions like this?

Answer 1

Question

Chapter 45, Problem 1TY

Summary Introduction

Introduction: A skeleton is a structure that provides support and protection. It plays an important role in locomotion. Exoskeleton and endoskeleton are the two major types of skeletons found in animals.

Expert Solution & Answer

Answer to Problem 1TY

Correct answer: A disadvantage of an exoskeleton is that it must be periodically shed. This leave the animal in a vulnerable state. Hence, the correct answer is option b.

Explanation of Solution

Reason for correct answer:

Exoskeletons provide support for the body and protection from the external environment and predators. It plays an important role in the protection of internal organs. They must be periodically shed and replaced in order to allow the growth of the animal. However, the new exoskeleton formed is soft, making the animal more vulnerable to predators and the environment.

Option b. is given as “must be periodically shed, leaving the animal in a vulnerable state”.

The periodic shedding of exoskeleton makes the animal more vulnerable to predators and the environment. This is because, the new exoskeleton formed is soft. Hence, the correct answer is option b.

Reasons for incorrect answer:

Option a. is given as, “cannot protect an animal’s internal organs”.

Exoskeleton plays an important role in the protection of internal organs. It is not a disadvantage of an exoskeleton. Hence, option a. is incorrect.

Option c. is given as, “does not provide any flexibility for the ease of movement of an animal”.

Exoskeletons are tough, durable, and segmented to provide flexibility and to allow movement. Hence, option c. is incorrect.

Option d. is given as, “is a soft, easily damaged structure”.

Exoskeletons are tough and durable. The new exoskeleton formed after molting is soft. Hence, option d. is incorrect.

Option e. is given as, “cannot protect the outside of the body surface”.

Exoskeleton surrounds and protects most of the body surface. It is not a disadvantage of exoskeleton in animals. Hence, option e. is incorrect.

Hence, the options a., c., d., and e. are incorrect.

Conclusion

Thus, a disadvantage of an exoskeleton is that it must be shed periodically. This leave the animal in a vulnerable state.

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

Which of the structural components listed in the Essential terms of section 1.3 (Cell components) could occur in a plant cell? Paragraph く BIUA 川くく 80 + кл K

Which of the following statements refer(s) directly to the cell theory? (Note that one or more correct answers are possible.) Select 2 correct answer(s) a) There are major differences between plant and animal cells. b) There are major differences between prokaryote and eukaryote cells. c) All cells have a cell wall. d) All cells have a cell membrane. e) Animals are composed of cells. f) When a bacterial cell divides, it produces two daughter cells.

Preoperative Diagnosis: Torn medial meniscus, left knee Postoperative Diagnosis: Combination horizontal cleavage tear/flap tear, posterior horn, medial meniscus, left knee. Operation: Arthroscopic subtotal medial meniscectomy, left knee Anesthetic: General endotracheal Description of Procedure: The patient was placed on the operating table in the supine position and general endotracheal anesthesia was administered. After an adequate level of anesthesia was achieved, the patient's left lower extremity was prepped with Betadine scrubbing solution, then draped in a sterile manner. Several sites were then infiltrated with 1% Xylocaine solution with Epinephrine to help control bleeding from stab wounds to be made at these sites. These stab wounds were made anterolaterally at the level of the superior pole of the patella for insertion of an irrigation catheter into the suprapatellar pouch area, anterolaterally at the level of the joint line for insertion of the scope and anteromedially at…

Answer 2