Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 45, Problem 2TY
Summary Introduction
Introduction: A skeleton is a structure that provides support and protection and plays an important role in locomotion. Exoskeletons and endoskeletons are the two major types of skeletons found in animals.
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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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- Exoskeletonsa. are typical of vertebrates.b. are hydrostatic.c. must be shed periodically.d. are moved by muscles attached to the outside of joints.arrow_forwardA human forearm, a horse's front leg, a bat's wing, and a porpoise's flipper have similar bone structure. What conclusions can we draw from the similarities in bone structure between these mammals? a. Such homologies do not exist in other areas of the vertebrate skeleton. b. Similarities among vertebrate forelimbs suggest they evolved from a common ancestor. c. Similarities among vertebrate forelimbs suggest they have evolved convergently. d. The anatomy of the vertebrate forelimb is not currently undergoing natural selection. e. Differences among vertebrate forelimbs suggest that they evolved independently.arrow_forwardOne of the innovations in animal body design, segmentation, allowed fora. development of efficient internal organ systems.b. more flexible movement as individual segments can move independently of each other.c. locating organs in different areas of the body.d. early determination of embryonic cellsarrow_forward
- What part of Human anatomy is similar to the Pectoral and Pelvic Girdle of the amphibian?arrow_forwardA human's arm, a cat's front leg, a dolphin's front flipper, and a bat's wing _____ a. are used in similar ways b. have similar kinds of bones c. share many similarities with insect wings and jellyfish tentacles d. have nothing in commonarrow_forwardwhy do you think hydrostatic skeleton is eventually lost in animals with exoskeleton and endoskeleton? give 2 examples with scientific explanationarrow_forward
- Worms use a hydrostatic skeleton to generate movement. How do they do this? a. Their bones are filled with water, which provides the weight of the skeleton. b. The change in body structure is caused by contraction of muscles compressing the watery body fluid. c. The muscles contain water vacuoles, which, when filled, provide a rigid internal structure. d. The term hydrostatic simply refers to moist environment. They generate movement just as arthropods do.arrow_forwardCompare 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_forwardWhich of the following is not a reason we become shorter as we age? a.As a person ages, the intervertebral discs become thinner and the vertebrae will be stacked closer together, resulting in shorter stature. b.As a person ages, vertebral bodies lose bone mass (osteoporosis) resulting in smaller vertebrae that stack closer together. c.As a person ages, scoliosis may develop resulting in an abnormal spinal curvature and shorter stature. d.As a person ages, the ligaments connecting vertebrae together are weakened, resulting in a more pronounced kyphosis. This posterior curvature of the spine lowers the skull, making you shorter.arrow_forward
- Fill in the blank spaces:(a) All mammals (except a few) have __________ cervical vertebra.(b) The number of phalanges in each limb of human is __________(c) Thin filament of myofibril contains 2 ‘F’ actins and two other proteins namely__________ and __________.(d) In a muscle fibre Ca++ is stored in __________(e) __________ and __________ pairs of ribs are called floating ribs.(f) The human cranium is made of __________ bones.arrow_forwardThe carpal bones are a set of eight bones that make up the human wrist. These bones are part of which division of the skeleton? A. Compact skeleton B. Axial skeleton C. Subchondral skeleton D. Appendicular skeletonarrow_forwardWhich, if any, of the following is not a function of the vertebrateskeleton?a. structural supportb. protection of internal organsc. Ca2+ reserved. blood cell productione. All of the above are functions of the vertebrate skeleton.arrow_forward
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