Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Textbook Question
Chapter 39, Problem 8TYU
SCIENTIFIC INQUIRY
Propose a hypothesis to explain how paramyosin enables clamshell muscles to remain contracted for long periods. Explain how you would test your hypothesis.
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Chapter 39 Solutions
Campbell Biology in Focus
Ch. 39.1 - Contrast the role of Ca2+ in the contraction of a...Ch. 39.1 - WHAT IF? Why are the muscles of an animal that has...Ch. 39.1 - Prob. 3CCCh. 39.2 - Prob. 1CCCh. 39.2 - Prob. 2CCCh. 39.2 - Prob. 3CCCh. 39.3 - Prob. 1CCCh. 39.3 - MAKE CONNECTIONS How is the lunar-linked rhythm of...Ch. 39.4 - How might associative learning explain why...Ch. 39.4 - Prob. 2CC
Ch. 39.4 - MAKE CONNECTIONS How might a learned behavior...Ch. 39.5 - Prob. 1CCCh. 39.5 - MAKE CONNECTIONS Balancing selection can maintain...Ch. 39.6 - Prob. 1CCCh. 39.6 - Prob. 2CCCh. 39 - During the contraction of a vertebrate skeletal...Ch. 39 - Prob. 2TYUCh. 39 - According to Hamiltons rule, A. natural selection...Ch. 39 - The binding of calcium to the troponin complex A....Ch. 39 - Curare, a substance that blocks the acetylcholine...Ch. 39 - Prob. 6TYUCh. 39 - Prob. 7TYUCh. 39 - SCIENTIFIC INQUIRY Propose a hypothesis to explain...Ch. 39 - Prob. 9TYUCh. 39 - Prob. 10TYUCh. 39 - FOCUS ON INFORMATION Learning is defined as a...Ch. 39 - Prob. 12TYU
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- What 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_forwardgive examples of animals with hydrostatic skeleton that are soon changed to exoskeleton or endoskeleton when they growarrow_forwardWhy does the larval stages of insects exhibit a softer and thinner exoskeleton than their adult forms?arrow_forward
- Scientific understanding of the evolution and phylogeny of the Arthropoda has changed enormously in recent years. Briefly explain why this is truearrow_forwardDiscuss the idea that every evolutionary adaptation has both advantages and disadvantages, using each of the following as an example: (a) cephalization,(b) the arthropod exoskeleton, and (c) segmentation with specialization.arrow_forwardWhich statement about this diagram is NOT correct? A. Each pink sphere is an actin protein molecule B. The red balls are troponin C. The green things are myosin D. The blue line is tropmyosin E. Ca++ ions attach to the myosin heads to initiate the powerstrokearrow_forward
- Match the following columns A and B and choose the option with all correct match. Column A Column B a. Reptilia (i) Jointed locomotory appendages b.Mammalia (ii) Presence of epidermal scales or scutes Presence of different types of teeth in c.Arthropoda(iii: jaws Presence of muscular foot, mantle and visceral hump d.Mollusca (iv)[ a(i), b(ii), c(ii), d(iv) O a(ii), b(iii), c(i), d(iv) a(iv), b(iii), c(ii), d(i) a(ii), b(ii), c(iv), d(1)arrow_forwardNematodes and nematomorphs have which type(s) of skeletal system? a.) Endoskeleton b.) Endoskeleton and hydrostatic skeleton c.) Endoskeleton and exoskeleton d.) Exoskeleton and hydrostatic skeleton e.) Exoskeleton f.) Hydrostatic skeletonarrow_forwardChoose three characteristics of an arthopod mantle longitudinal muscles only tagma close circulatory system radula incomplete digestive system open circulatory system exoskeleton protonephridia diffusion across the skinarrow_forward
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