Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 43, Problem 7TYK
Which of the following is not an example of a hydrostatic skeletal structure?
a. the tube feet of sea urchins
b. the body wall of annelids
c. the mantle of squids
d. the body wall of cnidarians
e. the penis of mammals
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Chapter 43 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 43.1 - Prob. 1SBCh. 43.1 - Prob. 2SBCh. 43.1 - Prob. 3SBCh. 43.2 - Prob. 1SBCh. 43.2 - Prob. 2SBCh. 43.3 - Prob. 1SBCh. 43.3 - Prob. 2SBCh. 43 - Prob. 1TYKCh. 43 - Prob. 2TYKCh. 43 - Prob. 3TYK
Ch. 43 - Prob. 4TYKCh. 43 - Prob. 5TYKCh. 43 - Prob. 6TYKCh. 43 - Which of the following is not an example of a...Ch. 43 - Endoskeletons: a. protect internal organs and...Ch. 43 - Prob. 9TYKCh. 43 - Prob. 10TYKCh. 43 - Prob. 11TYKCh. 43 - Prob. 12TYKCh. 43 - Prob. 13TYKCh. 43 - Prob. 14TYKCh. 43 - Prob. 15TYKCh. 43 - Prob. 1ITDCh. 43 - Prob. 2ITDCh. 43 - Prob. 3ITDCh. 43 - Prob. 4ITD
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- Which of the following is NOT a characteristic of the exoskeleton of an arthropod? A. Always laden with calcium salts. B. Chitinized with an outer layer of cuticle. C. The plates are connected with an articular membrane. D. Composed of the tergum, sternum and pleura plates.arrow_forwardWorms 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_forwardEndoskeletons: a. protect internal organs and provide structures against which the force of muscle contraction can work. b. differ from exoskeletons in that endoskeletons do not support the external body. c. cannot be found in echinoderms. d. are composed of cartilaginous structures that form the skull. e. compose the arms and legs.arrow_forward
- 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?arrow_forwardIn a typical insect leg, what part may be composed of 2 to 5 segments? a. Femur b. Trochanter c. Pre-tarsus d. Tarsusarrow_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
- give 2 examples of animals with exoskeleton and endoskeleton where the hydrostatic skeleton is lost explain scientifically do not just google pleasearrow_forwardWhich of the following is not true about human and ape skeletons?a. Humans have a long, narrow pelvis.b. A human’s spinal cord exits from the bottom of the skull.c. An ape’s arms are longer than its legs.d. An ape’s spinal column is slightly curvedarrow_forwardThe epitheliomuscular cells found in cnidarians anticipate the muscular system of more complex animals. The absence of muscle tissue in cnidarians primarily reflects... A. The fact that cnidarians are basal metazoans, having specialised cells but lacking tissues B. The presence of only two germ layers, ectoderm and endoderm, in cnidarian embryos C. The fact that cnidarians lack a nervous system D. The sessile lifestyle observed in all cnidarians E. All of the above explain the absence of muscle tissue in cnidariansarrow_forward
- Which of the following is not possible? a. radially symmetrical diploblast b. diploblastic eucoelomate c. protostomic coelomate d. bilaterally symmetrical deuterostomearrow_forwardCrayfish, unlike earthworms, do not have a hydrostatic skeleton. Instead, crayfish have a rigid exoskeleton. Give 2 advantages to the having the exoskeleton and 2 disadvantages.arrow_forwardBoth cartilaginous and bony fishes have a. jaws d. a swim bladder b. a bony skeleton e. a four-chambered heart c. lungs f. all of the abovearrow_forward
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