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20 Cards in this Set
- Front
- Back
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chapter 11?
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Functional Anatomy and Support for Locomotion
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Terrestrial vertebrates that have returned to the aquatic environment are ***.
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secondary swimmers
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Most primary swimmers are also *** swimmers. They use their *** to swim.
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undulatory
trunk and tail |
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Most secondary swimmers are *** swimmers. They use their *** to swim.
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oscillatory
tail or paired appendages |
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According to *** principal an object displaces *** and the displaced fluid ***.
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Archimedes
a weight of fluid equal to its own weight exerts an upwards force on the object. |
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Frictional and other forces in water are collectively called ***.
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drag
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The *** resist compressive forces generated as the animal pushes through the water... also prevents shortening and telescoping.
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ventrum
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Many reef fishes, freshwater sunfishes, and bass are *** swimmers.
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transient
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Many pelagic fishes, such as tuna and sharks, are *** swimmers.
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periodic
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Modes of swimming include;
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acto - ancathos
anguiliform carangiform thuniform ostraciform. |
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In chondrichthyans life is created by...
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use of cartilage for the skeleton
storage of lipids in the large liver as energy reserves use of TMAO and urea in the blood |
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Bony fishes have what method for lift in water?
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lung or swim bladder that can be filled with gasses
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Tetrapods - Weight is transferred to the pelvic girdle by one or more *** vertebrae and ribs.
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sacral
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Mammals have less/more sacral vertebrae than do amphibians and reptiles.
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more
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Tetrapods - Weight is transferred to the pectoral girdle by *** extending between the *** and ***.
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a muscular sling(not bone)
trunk skeleton and the girdle |
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Although the *** and *** muscles are part of the sling the *** is the major component.
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rhomboids and pectoralis
serratus ventralis muscle |
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The *** cartilage need not resist compression, but must be sufficiently flexible to allow the ribs to move during respiration.
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costal
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A few species (frogs, toads, and kangaroos) have become specialized for jumping or *** locomotion.
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saltatorial
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Saltators minimize *this* by shifting their center of mass toward the *** and strengthening the vert column by shortening the trunk and having large *** that firmly unite the vertebrae.
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sacrum
zygopophyses |
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Wings evolved from the pectoral appendages of ***, birds and bats.
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pterosaurs
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