Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 45.1, Problem 1CC
Summary Introduction
To determine: The way in which the absence of an external skeleton is an advantage for the animals.
Introduction: A skeleton is a structure that provides support and protection and also plays an important role in locomotion. Exoskeletons and endoskeletons are the two major types of skeletons found in animals. The exoskeleton is found in arthropods and crustaceans. Endoskeleton is found in some species of sponges and all echinoderms and vertebrates.
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Chapter 45 Solutions
Biology
Ch. 45.1 - Prob. 1CCCh. 45.2 - Prob. 1CCCh. 45.2 - Prob. 1CSCh. 45.2 - Prob. 2CSCh. 45.3 - What is the normal function of the PPAR- protein...Ch. 45.3 - CoreSKILL What was the hypothesis proposed by...Ch. 45.3 - CoreSKILL Assume that the mean weight of both...Ch. 45 - Prob. 1TYCh. 45 - Prob. 2TYCh. 45 - Prob. 3TY
Ch. 45 - Prob. 4TYCh. 45 - The function of ATP during muscle contraction is...Ch. 45 - The function of Ca2+ in skeletal muscle...Ch. 45 - Stimulation of a muscle fiber by a motor neuron...Ch. 45 - Muscle fibers that have a large number of...Ch. 45 - Which of the following statements about movement...Ch. 45 - Prob. 10TYCh. 45 - Compare the structural and functional features of...Ch. 45 - Describe as many types of animal locomotion as you...Ch. 45 - Prob. 3CQCh. 45 - List and briefly describe the steps in the...Ch. 45 - Discuss the three types of muscle tissues found in...
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- Why do some vertebrates possess cartilaginous endoskeletons while otherspossess bony endoskeletons? Give at least two examples.arrow_forwardWhy do you think the hydrostatic skeleton is eventually lost in animals withexoskeleton and endoskeleton? Give at least two examples.arrow_forwardWhich of the following is not a true statement comparing exoskeletons and endoskeletons? a. Endoskeletons can support larger organisms. b. Only endoskeletons can grow as an organism grows. c. Exoskeletons provide greater protection of the internal organs. d. Exoskeletons provide less mechanical leverage.arrow_forward
- Explain how the three different skeletal system types can be used to create locomotion in animals. Can all three skeletal systems be used for locomotion in each environment (water, land, air)? Why or why not?arrow_forwardExplain how an endoskeleton differs from an exoskeleton.arrow_forwardHydrostatic 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.arrow_forward
- 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_forwardWhy is it important to understand the relationship of bones and muscles and their functions? own words pleasearrow_forwardBoth hydrostatic and exoskeletons can protect internal organs from harm. Contrast the ways the skeletons perform these functions.arrow_forward
- A scientist extracts and measures the calcium content of one of your muscle fibers while you are asleep, when all of your muscles are relaxed. Where is the scientist likely to find calcium? In the T-tubules In the sarcoplasmic reticulum Bound to tropomyosin Bound to troponinarrow_forwardWhich function is NOT one of the skeleton functions: a) Production of blood cells b) Provide attachment points for muscles c) Storage of calcium and phosphate d) Storage of vitamin D.arrow_forwardWhich of the following is not a function of the skeletal system in animals? A. providing insertion (attachment) places for muscles B. receiving signals from the nervous system to execute motion C. providing the basic shape and structure of an animal D. enabling locomotion E. protecting the animal from external forces and physical threatsarrow_forward
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