Loose-leaf Version for What Is Life? A Guide to Biology 4E & LaunchPad for What is Life? A Guide to Biology 4E (Twelve Month Access)
4th Edition
ISBN: 9781319154639
Author: Jay Phelan
Publisher: W.H. Freeman & Co
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Chapter 13, Problem 6SA
Summary Introduction
To review:
To compare and contrast the benefits and cost of having an exoskeleton.
Introduction:
An exoskeleton is the external skeleton that supports and protects an animal body. Arthropods are covered with a tough resilient integument or exoskeleton of chitin. Though chitin is a tough substance, many arthropods add calcium carbonate to their exoskeleton to make it even stronger.
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Chapter 13 Solutions
Loose-leaf Version for What Is Life? A Guide to Biology 4E & LaunchPad for What is Life? A Guide to Biology 4E (Twelve Month Access)
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- give examples of animals with hydrostatic skeleton that are soon changed to exoskeleton or endoskeleton when they growarrow_forwardWhat is a unique characteristic of an endoskeleton as compared to an exoskeleton? a). The endoskeleton is capable of growth. b). The endoskeleton permits movement. c). The endoskeleton is molted more frequently.d). The endoskeleton provides support. e). Two of the choices are correct.arrow_forwardObserve the exoskeleton of the marine blue crab. What do you think they are made of?arrow_forward
- Can you explain Metacentric, Submetacentric, Acrocentric and Telocentricarrow_forwardWhat is the major disadvantage of an exoskeleton? A) It does not provide effective support for muscles. B) It does not protect the internal organs. C) It hardens only after an extended exposure to air. D) It must be periodically shed for growth to occur.arrow_forwardUsing the table, give at least 10 exoskeletons found in animals, source, its description and state their embryonic origin. (Explain in 1-3 sentences)arrow_forward
- Worms use a hydrostatic skeleton to generate movement. How do they do this? a. Their bones are filled with water, which provides the weight of the skeleton. b. The change in body structure is caused by contraction of muscles compressing the watery body fluid. c. The muscles contain water vacuoles, which, when filled, provide a rigid internal structure. d. The term hydrostatic simply refers to moist environment. They generate movement just as arthropods do.arrow_forwardThe arthropod exoskeleton is the most complex of invertebrate in-teguments. Describe its structure, and explain the difference in the way cuticle is hardened in crustaceans and in insectsarrow_forwardWhat disadvantages associated with having exoskeletons did arthropods have to overcome to allow natural selection to favor this trait? How did they circumvent these problems?arrow_forward
- Give at least 10 exoskeletons found in animals, source, its description and state their embryonic origin. (Explain in 1-3 sentences) (Use the table)arrow_forwardwhy do some vertebrates possess cartilaginous endoskeleton while others possess bony endoskeleton? give 2 examples with scientific explanation please do not copy from google and here because i need other answers, i will upvotearrow_forwardBriefly discuss the components that make up the exoskeleton. List the hormones responsible for this process and how the exoskeleton is shed during moulting in arthropods.arrow_forward
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