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WIS 2040 UF exam 1, WIS2040 exam1 Questions and Answers

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WIS 2040 UF exam 1, WIS2040 exam1 Questions and Answers By 1984 the Schaus Swallowtail Butterfly was reduced to a total of - ANSWER-70 individuals The Schaus Swallowtail butterfly is found only in - ANSWER-florida keys Moulton believes that few invertebrate species are federally listed in Flori...

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  • October 31, 2024
  • 47
  • 2024/2025
  • Exam (elaborations)
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  • WIS 2040
  • WIS 2040
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©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED

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WIS 2040 UF exam 1, WIS2040 exam1

Questions and Answers


By 1984 the Schaus Swallowtail Butterfly was reduced to a total of - ANSWER✔✔-70 individuals


The Schaus Swallowtail butterfly is found only in - ANSWER✔✔-florida keys


Moulton believes that few invertebrate species are federally listed in Florida because invertebrate -

ANSWER✔✔-have not been studied extensively


Embryonic genes switch on during the --- phase of development. - ANSWER✔✔-gastrula


The Schaus Swallowtail butterfly was nearly wiped out in 1992 because of - ANSWER✔✔-hurricane

andrew


When the Welland canal was deepened----invaded Lake Erie. - ANSWER✔✔-lampreys


Natives on the Yukon River harvest nemeryaq which are actually - ANSWER✔✔-lampreys


urochordata - ANSWER✔✔-are chordates that are sessile as adults and/but have a free-swimming larva.


All lampreys are parasitic. - ANSWER✔✔-false



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TFM is a chemical once used to control - ANSWER✔✔-lampreys


The parasitic sea lamprey is characterized by having - ANSWER✔✔-an oral disk


All chordates have - ANSWER✔✔-a dorsal hollow nerve cord & pharyngeal gill slits.


refers to the developmental change from juvenile to adult - ANSWER✔✔-metamorphosis


The phylum chordate is subdivided into-- subphyla. - ANSWER✔✔-three


Fish that live in marine environments and ascend creeks and streams to breed are called - ANSWER✔✔-

anadromous


The four chordate characteristics are all visible in the adults of all chordate species. - ANSWER✔✔-false


Some species of --- are catadromous species. - ANSWER✔✔-eels


use slime production as a defense mechanism. - ANSWER✔✔-hagfish


There are about -- species of jawless vertebrates in the world today. - ANSWER✔✔-70


Lampreys are chiefly catadromous. - ANSWER✔✔-false


When lampreys reached the upper Great Lakes the --- fishery collapsed - ANSWER✔✔-lake trout


Typically, invertebrates use their gills for - ANSWER✔✔-feeding


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Modern hagfishes are found only in - ANSWER✔✔-marine environments


The currently accepted theory among biologists on the evolution of the vertebrates is based on -

ANSWER✔✔-garstang's hypothesis


TFM may be replaced in the future by - ANSWER✔✔-baylucide


The Ostracoderms may have used the bone in their skin for - ANSWER✔✔-a mineral reservoir


The sea squirts belong to the subphylum - ANSWER✔✔-urochordata


Sea urchins belong to the phylum - ANSWER✔✔-echinodermata


The Ostracoderms may have used their bony skin for - ANSWER✔✔-protection


Amphioxus is a typical member of the subphylum - ANSWER✔✔-cephalochordate


is the phylum of marine, acorn worms - ANSWER✔✔-hemichordata


In the vertebrates the gills are internal and - ANSWER✔✔-connected to the digestive tube


Among the vertebrates a prominent notochord is found in adult members of the class - ANSWER✔✔-

agnatha


Scientists once thought (incorrectly) that Amphioxus was a larval --- that underwent paedomorphosis -

ANSWER✔✔-lamprey


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ostracoderms - ANSWER✔✔-were the first vertebrates.


The Patagonian Toothfish is managed by a group of 24 nations that make up the - ANSWER✔✔-CCAMLR


In order for jaws to function properly an animal must be able to overcome ---, pitch, and yaw. -

ANSWER✔✔-roll


According to Sea Web as many as ---million pounds of marlin were discarded by the swordfish industry

between 1995-1996. - ANSWER✔✔-1.1


Sharks are now commonly harvested for their ----, which is said to function as a cancer preventative. -

ANSWER✔✔-cartilage


To protect Lake Michigan from possible invasion by Asian carp, fishery managers - ANSWER✔✔-put up

electrical barrier


The Patagonian Toothfish is officially listed as endangered. - ANSWER✔✔-false


Any swordfish that are caught that are not large enough by established standards are - ANSWER✔✔-

thrown overboard


The US government recently closed more than 132,000 square miles of the Atlantic to commercial

swordfishing because these areas are - ANSWER✔✔-swordfish nursery areas




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