BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 45.1, Problem 1LO
Compare hydrostatic skeletons, exoskeletons, and endoskeletons.
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Why do you think the hydrostatic skeleton is eventually lost in animals withexoskeleton and endoskeleton? Give at least two examples.
Hydrostatic skeletons have been defined as a mass of fluid enclosed within a muscular wall. How would you modify this definition to apply it to a muscular hydrostat? Offer examples of both a hydro-static skeleton and a muscular hydrostat.
Criteria
Type of Skeleton
Hydrostatic
Exoskeleton
Support
composition
hardness
Movement
flexibility
Protection
prevents damage
retains moisture
Chapter 45 Solutions
BIOLOGY
Ch. 45.1 - Compare hydrostatic skeletons, exoskeletons, and...Ch. 45.1 - Explain how animals with hydrostatic skeletons...Ch. 45.2 - Prob. 1LOCh. 45.2 - Prob. 2LOCh. 45.2 - Prob. 3LOCh. 45.3 - Prob. 1LOCh. 45.4 - Prob. 1LOCh. 45.4 - Prob. 2LOCh. 45.4 - Prob. 3LOCh. 45.5 - Prob. 1LO
Ch. 45.5 - Describe how friction and gravity affect...Ch. 45.5 - Prob. 3LOCh. 45 - Prob. 1IQCh. 45 - Exoskeletons and endoskeletons differ in that a....Ch. 45 - Worms use a hydrostatic skeleton to generate...Ch. 45 - Bone develops by one of two mechanisms depending...Ch. 45 - Which of the following statements best describes...Ch. 45 - Motor neurons stimulate muscle contraction via the...Ch. 45 - Prob. 6UCh. 45 - If you wanted to study the use of ATP during a...Ch. 45 - Place the following events in the correct order....Ch. 45 - You take X-rays of two individuals. Ray has been a...Ch. 45 - You have identified a calcium storage disease in...Ch. 45 - How do the muscles move your hand through space?...Ch. 45 - How can osteocytes remain alive within bone? a....Ch. 45 - Swimming underwater using forelimbs for propulsion...Ch. 45 - If a drug inhibits the release of ACh, what will...Ch. 45 - Prob. 1SCh. 45 - Prob. 2SCh. 45 - The nerve gas methylphosphonofluoridic acid...Ch. 45 - If natural selection favors the evolution of wings...
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- Which of the following is not a true statement comparing exoskeletons and endoskeletons? Endoskeletons can support larger organisms Only endoskeletons can grow as an organism grows Exoskeletons provide greater protection of the internal organs Exoskeletons provide less mechanical leverage.arrow_forwardCompare the structures and functions of bursae and tendon sheaths.arrow_forwardDescribe the location and purpose of the synovial membrane.arrow_forward
- Two insects find themselves in the unfortunate position where they need to defend themselves against each other (there is no possibility of running away). How will their exoskeletons be advantageous to them in this case?arrow_forwardAnswer the tablearrow_forwardDo you think flexibility exercises work to make tendons or ligaments more flexible? Why would flexibility be so important to musculoskeletal health?arrow_forward
- The flexibility of the leg depends on: a) Hydroxyapatite b) Ligament c) Periosteum d) Collagen fibersarrow_forwardUnlike exoskeletons, endoskeletons do not provide protection for the body surface of animals. How can the lack of an external skeletonalso be an advantage for animals?arrow_forwardDefine Scaffold proteins.arrow_forward
- Compare a hinge joint and a pivot joint with respect to structure,function, and location within the body.arrow_forward2 3arrow_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_forward
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