Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Question
Chapter 35.1, Problem 1CC
Summary Introduction
To analyze:
The ways by which the lack of an external skeleton is an advantage for animals.
Introduction:
The exoskeleton is a tough body covering that is present exterior to the body of an invertebrate. It is composed of chitin, minerals, and calcium.
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Although the most diverse and numerous animal groups on Earth have exoskeletons, this type of skeleton has some disadvantages when compared to endoskeletons. Describe any two potential disadvantages of exoskeletons.
Most land animals with exoskeletons are smaller than the volume of a mouse, and most vertebrates are larger than a mouse (marine invertebrates can be somewhat bigger). What keeps an insect with an exoskeleton from being as big as a horse?
Why do some vertebrates possess cartilaginous endoskeletons while otherspossess bony endoskeletons? Give at least two examples.
Chapter 35 Solutions
Principles of Biology
Ch. 35.1 - Prob. 1CCCh. 35.1 - Prob. 1TYKCh. 35.1 - Prob. 2TYKCh. 35.2 - Prob. 1CCCh. 35.2 - Rigor mortis is the condition that occurs shortly...Ch. 35.2 - Prob. 1BCCh. 35.2 - Prob. 3CCCh. 35.2 - Prob. 2BCCh. 35.2 - Prob. 1TYKCh. 35.2 - Prob. 2TYK
Ch. 35.3 - Prob. 1TYKCh. 35.4 - Prob. 1TYKCh. 35.4 - Prob. 2TYKCh. 35 - Prob. 1TYCh. 35 - Which, if any, of the following is not a function...Ch. 35 - Prob. 3TYCh. 35 - Prob. 4TYCh. 35 - Prob. 5TYCh. 35 - During cross-bridge cycling, binds to _________,....Ch. 35 - Prob. 7TYCh. 35 - Prob. 8TYCh. 35 - Prob. 9TYCh. 35 - Prob. 10TYCh. 35 - Prob. 1CCQCh. 35 - Prob. 2CCQCh. 35 - Prob. 3CCQCh. 35 - Discuss the structure and function of the two...Ch. 35 - Prob. 2CBQ
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- Which 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_forwardExplain 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_forwardWhat are the three types of skeletons found in animals? For one of them, describe how the muscles are arranged around the skeleton and how contractions of the muscles result in movement of the skeleton.arrow_forward
- Compare the bat to the bird. Where is the bat's ulna? Are there any remnants of it? How is the bat's wing membrane supported by its skeleton? Be precise. Does a bird's wing work in the same way? How many metacarpals and digits ("fingers") does it have? (This is all just one question on comparing the bat to the bird)arrow_forwardWhy does the larval stages of insects exhibit a softer and thinner exoskeleton than their adult forms?arrow_forwardCompare the types of skeletons in invertebrates in terms of support, movement and protection using Table 1.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_forwardBoth hydrostatic and exoskeletons can protect internal organs from harm. Contrast the ways the skeletons perform these functions.arrow_forwardDo invertebrates without bones have something rigid for their muscles to pull against? How so?arrow_forward
- Which 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_forwardExoskeletonsa. are typical of vertebrates.b. are hydrostatic.c. must be shed periodically.d. are moved by muscles attached to the outside of joints.arrow_forwardWhy is it important to understand the relationship of bones and muscles and their functions? own words pleasearrow_forward
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