Mastering Biology – Flashcards
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Which of the following statements about human evolution is correct? Fossil evidence indicates that early anthropoids were arboreal, and cat-sized. Human ancestors were virtually identical to extant chimpanzees. Modern humans are the only human species to have evolved on Earth. The upright posture and enlarged brain of humans evolved simultaneously. Human evolution has occurred within an unbranched lineage.
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Fossil evidence indicates that early anthropoids were arboreal, and cat-sized.
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Which is a genus that has only one extant species?
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Homo
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Which of the following are considered hominoids? orises lemurs orangutans tarsiers monkeys
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orangutans
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Which of these traits is most strongly associated with the adoption of bipedalism? fingerprints enhanced depth perception shortened hindlimbs opposable big toe repositioning of foramen magnum
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repositioning of the foramen magnum
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Which of these hominin traits seems to have occurred before the others? tool use symbolic thought increased brain size language bipedalism
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bipedalism
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Humans are _______.
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Homo sapiens
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Which of the following statements is correct in regard to Homo erectus? H. erectus had a level of sexual dimorphism less than that of modern humans. H. erectus was not known to use tools. H. erectus evolved before H. habilis. Their fossils are not limited to Africa. On average, H. erectus had a smaller brain than H. habilis.
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Their fossils are not limited to Africa.
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As humans diverged from other primates, which of the following appeared first?
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bipedal locomotion
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Which of these species was the first to have some members migrate out of Africa? H. habilis H. heidelbergensis H. erectus H. sapiens H. ergaster
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H. erectus
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Which term is most nearly synonymous with "apes"?
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hominoids
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Arrange the following taxonomic terms from most inclusive (i.e., most general) to least inclusive (i.e., most specific): 1. hominoids 2. hominins 3. Homo 4 anthropoids 5. primates
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5, 4, 1, 2, 3
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This is a gene linked to the development of speech in hominids:
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FOXp2
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Which of these species was the first to craft stone tools? Which of these species was the first to craft stone tools? H. erectus H. sapiens H. habilis H. heidelbergensis H. ergaster
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H. Habilis
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Which of these is a trend in hominin evolution? Which of these is a trend in hominin evolution? increased brain to body ratio a shortened period of parental care of offspring increased ability to switch back and forth between bipedalism and quadrupedalism a shoulder joint increasingly adapted to brachiation well-developed claws for clinging to trees
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increased brain to body ratio
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How are primates different from all other mammals?
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opposable thumbs in many species
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Which of these primate groups is most closely related to hominids? Which of these primate groups is most closely related to hominids? apes Old World monkeys lorises prosimians New World monkeys
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apes
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_____ are the oldest known primate group.
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Prosimians
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The primates that spend the most time walking upright are the
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hominids
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Which of these anthropoid groups consists of primates who are mostly tree dwellers and whose forelimbs and hind limbs are about equal in length? monkeys hominids prosimians primates apes
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monkeys
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Which of these primate groups lives in trees in Central and South America and have nostrils that are wide open and far apart?
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New World Monkeys
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The most common kind of dispersion in nature is
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clumped
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A table listing such items as age, observed number of organisms alive each year, and life expectancy is known as a (an)
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life table
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Demography is the study of
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the vital statistics of populations and how they change over time.
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Which of the following groups would be most likely to exhibit uniform dispersion? lake trout, which seek out deep water cattails, which grow primarily at edges of lakes and streams moths in a city at night dwarf mistletoes, which parasitize particular species of forest tree red squirrels, who actively defend territories
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red squirrels, who actively defend territories
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Life tables are most useful in determining which of the following? immigration and emigration rates the fate of a cohort of newborn organisms throughout their lives reproductive rates carrying capacity population dispersion patterns
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the fate of a cohort of newborn organisms throughout their lives
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Which of the following describes having more than one reproductive episode during a lifetime? cohort Allee effect iteroparous semelparous dispersion
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iteroparous
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Uniform spacing patterns in plants such as the creosote bush are most often associated with
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competitive interactions among individuals in the population.
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Pacific salmon and annual plants are excellent examples of
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semelparous reproduction.