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Auk: Quiz


Question 1: This is probably a product of the rather small geographic range of the family (the most limited of any seabird family), and the periods of ________ advance and retreat that have kept the populations on the move in a narrow band of subarctic ocean.
Little Ice AgeIce sheetGlacierCurrent sea level rise

Question 2: ________ of auks seems to have been markedly higher during the Pliocene[2].
EcologyNatureBiodiversityConservation biology

Question 3: Two very fragmentary fossils are often assigned to the Alcidae, although this may not be correct: Hydrotherikornis (Late ________, some 35 mya) and Petralca (Late Oligocene).
EocenePaleoceneGeologic time scaleEarth

Question 4: Early movement between the Pacific and the Atlantic probably happened to the south (since there was no northern opening to the Atlantic), later movements across the ________[2].
Pacific OceanIndian OceanArctic OceanAtlantic Ocean

Question 5: The feeding behaviour of auks is often compared to that of ________; they are both wing-propelled pursuit divers.

Question 6: The current paucity of auks in the Atlantic (6 species), compared to the Pacific (19-20 species) is considered to be because of extinctions to the Atlantic auks; the fossil record shows there were many more species in the Atlantic during the ________.
MioceneGreat American InterchangePlioceneGeologic time scale

Question 7: They are superficially similar to ________ due to their black-and-white colours, their upright posture and some of their habits.

Question 8: Miocene fossils have been found in both ________ and Maryland, but the greater diversity of fossils and tribes in the Pacific leads most scientists to conclude that it was there they first evolved, and it is in the Miocene Pacific that the first fossils of extant genera are found.
Los AngelesSacramento, CaliforniaCaliforniaSan Jose, California

Question 9: The flightless subfamily Mancallinae which was apparently restricted to the Pacific coast of southern North America became extinct in the Early ________.
PleistoceneLast glacial periodGlacial periodLittle Ice Age

Question 10: The southernmost auks, in California and ________, can survive there because of cold upwellings.
MexicoPhilippinesNicaraguaUnited States


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