BIOLOGY(LL)-W/ACCESS CODE >CUSTOM<
12th Edition
ISBN: 9781264058167
Author: Raven
Publisher: MCG CUSTOM
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Textbook Question
Chapter 45.1, Problem 1LO
Compare hydrostatic skeletons, exoskeletons, and endoskeletons.
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Explain how an endoskeleton differs from an exoskeleton.
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.
Why do you think the hydrostatic skeleton is eventually lost in animals withexoskeleton and endoskeleton? Give at least two examples.
Chapter 45 Solutions
BIOLOGY(LL)-W/ACCESS CODE >CUSTOM<
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 types of skeletons in invertebrates in terms of support, movement and protection using Table 1.arrow_forwardCriteria Type of Skeleton Hydrostatic Exoskeleton Support composition hardness Movement flexibility Protection prevents damage retains moisturearrow_forward
- Compare the structures and functions of bursae and tendon sheaths.arrow_forwardTwo 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_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_forward2 3arrow_forward
- 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_forwardDescribe the following characteristics of a hydrostatic skeleton? Common developmental stage digestive system sexulaity musculature ciliationarrow_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_forward
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